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  Agricultural Research Bulletins, Nos. 522-555

  Jay C. Andersen, Jerald R. Barnard, Ward W. Bauder, George M. Beal, C. E. Beer, Joe M. Bohlen, Lee G. Burchinal, Walter R. Butcher, Charles W. Caillouet Jr., Richard J. Crom, L. C. Dumenil, A. J. Englehorn, Lehman B. Fletcher, A. E. Freeman, G. E. Gatherum, Ben L. Grover, Milton Hallberg, John J. Hanway, Earl O. Heady, G. V. Holmberg, Loren Ihnen, N. L. Jacobson, Thomas C. Jetton, H. P. Johnson, Donald R. Kaldor, William F. Kenkel, Don Kirkham, George W. Ladd, P. L. Lorio, J. Patrick Madden, Wilbur R. Maki, James E. Martin, R. J. Miller, W. C. Moldenhauer, Turgut Ozus, John T. Pesek Jr., V. Y. Rao, Larry G. Rigler, W. A. Russell, Bernard L. Sanders, Dean F. Schreiner, John T. Scott, W. D. Shrader, Melvin Skold, Richard E. Suttor, A. H. Teich, Patrick H. Walker, and Norman K. Whittlesey

  Volume 35, Bulletins 522-555. (522) Role of Nitrogen, Phosphorus and Potassium Fertilizers in Continuous Corn Culture on Nicollet and Webster Soils; (523) Solving Tile Drainage Problems by Using Model Data; (524) Soybean Yields and Plant Composition as Affected by Phosphorus and Potassium Fertilizers; (525) Conservation Reserve in South-Central Iowa; (526) Application of Distributed Lag and Autocorrelated Error Models to Short-Run Demand Analysis; (527) Cost Functions in Relation to Farm Size and Machinery Technology in Southern Iowa; (528) Family Decision-Making and Role Patterns Among Iowa Farm and Nonfarm Families; (529) Milk Production Functions in Relation to Feed Inputs, Cow Characteristics and Environmental Conditions; (530) Regional Intersectoral Relations and Demand Projections with Emphasis on the Feed-Livestock Economy of the North Central States; (531) Effect of Feed-Grain Output Controls on Resource Uses and Values in Northern and Southern Iowa; (532) Influence of Nitrogen and Phosphorus Fertilization on Nutrient Status and Profitability of Bromegrass on Ida Soils: I. Effect on Yields and Economics of Use, II. Effect on Chemical Composition of Bromegrass; (533) Experiments with Autoregressive Error Estimation; (534) Farm Migrants to the City: A Comparison of the Status, Achievement, Community and Family Relations of Farm Migrants with Urban Migrants and Urban Natives in Des Moines, Iowa; (535) Relationship of Tree Survival and Yield to Coal-Spoil Characteristics; (536) Effects of Migration on the Open-Country Population of Iowa, 1950-61; (537) Normative Supply Functions and Optimum Farm Plans for Northeaster Iowa; (538) Programming Analysis of Interregional Competition and Surplus Capacity of American Agriculture; (538) Projections of U. S. Agricultural Capacity and Interregional Adjustments in Production and Land Use with Spatial Programming Models; (539) Yield Response of Corn in a Planosol Soil to Subsurface Drainage with Variable Tile Spacings; (541) Evaluation of Alternative market Organizations in a Simulated Livestock-Meat Economy; (542) Exploratory Econometric Study of Dairy Bargaining Cooperatives; (543) Fertilizer Production Functions from Experimental Data with Associated Supply and Demand Relationships; (544) Comparisons of Laboratory and Greenhouse Indexes of Nutrient Availability in Soils; (545) Aggregate Investment Demand for Farm Buildings: A National, Regional and State Time-Series Analysis; (546) Characteristics of Operator Entry Into Iowa Farming, 1959-60; (547) Coordinated Egg Production and marketing in the North Central States: V. Least-Cost Egg Marketing Organization Under Alternative Production Patterns; (548) Simulation of Regional Product and Income with Emphasis on Iowa, 1954-1974; (549) Postglacial Environments in Relation to Landscape and Soils on the Cary Drift, Iowa; (550) Analysis of Ranking of Dairy Bargaining Cooperative Objectives; (551) Hyperactivity, Blood Lactic Acid and Mortality in Channel Catfish; (552) Selection in Zea mays L. by Inbred Line Appearance and Testcross Performance in Low and High Plant Densities; (553) Dissemination of Farm Market News and Its Importance in Decision-Making; (554) Fertilizer Production Functions in Relation to Weather, Location, Soil and Crop Variables; (555) Acreage Response and Production Supply Functions for Soybeans

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  Agricultural Research Bulletins, Nos. 489-521

  Jay C. Andersen, I. W. Arthur, S. A. Barber, C. E. Beer, Raymond Beneke, Melvin G. Blase, R. H. Bray, Ray F. Brokken, Russell Bryant, Lee G. Burchinal, A. C. Caldwell, Loren E. Chancellor, D. F. Cox, H. T. David, Michele de Benedictis, William D. Dobson, Alvin C. Egbert, Eber Eldridge, L. E. Engelbert, R. L. Fox, M. Fried, G. E. Gatherum, James R. Gibbons, Don M. Gray, James W. Gruebele, John J. Hanway, Yujiro Hayami, Earl O. Heady, Randall A. Hoffmann, D. Hovland, George Irwin, Perry E. Jacobson, Howard P. Johnson, Donald R. Kaldor, Joseph Kastelic, J. W. Ketcheson, Ronald D. Krenz, L. T. Kurtz, George W. Ladd, W. M. Laughlin, K. Lawton, R. C. Lipps, Charles Y. Liu, W. E. Loomis, Belle Lowe, Wilbur R. Maki, W. Owen McCarthy, A. L. McComb, William C. Motes, R. A. Olson, George A. Pavelis, John T. Pesek, K. Pretty, M. Reed, Glenn P. Roehrkasse, Donald D. Rohdy, J. M. Scholl, R. H. Shaw, Geoffrey S. Shepherd, W. D. Shrader, F. W. Smith, E. M. Stickney, Norman V. Strand, Roger W. Strohbehn, John F. Timmons, Luther G. Tweeten, and Walter Woods

  Volume 34, Bulletins 489-521. (489) Ownership of Iowa's Farmland; (490) Identification and Measurement of Inefficiencies in Leasing Systems; (491) Comparison of Resource Returns of Well-Organized Iowa Farms with Selected Nonfarm Opportunities; (492) Iowa Livestock Producers' Choice of Markets; (493) Methodology of Programming Small Watershed Development; (494) North Central Regional Potassium Studies: I. Field Studies with Alfalfa; (495) Organoleptic, Chemical, Physical and Microscopic Characteristics of Muscles in Eight Beef Carcasses, Differing in Age of Animal, Carcass Grade and Extent of Cooking; (496) Specialization and Pork Production Methods in Relation to Over-All Farm Resource Use and Integration; (497) Maternal Employment, Family Relations and Selected Personality, School-Related and Social-Development Characteristics of Children; (498) Soil Erosion Control in Western Iowa: Progress and Problems; (499) Response of Corn Yields in a Planosol Soil to Surface Drainage, Cropping System and Variable Fertilizer Treatments; (500) Description and Measurement of Rates of Early Mortality in the Pig; (501) Appraisal of the Federal Feed--Grains Programs; (502) Production, Income and Resource Changes from Farm Consolidation; (503) North Central Regional Potassium Studies; (504) Farm Size and Cost Relationships in Relation to Recent Machine Technology; (505) Poultry Supply Functions (The Relation of Technical Change to Output of Eggs, Broilers and Turkeys); (506) Derivation of Hydrographs for Small Watersheds from Measurable Physical Characteristics; (507) Short-Run Corn Supply and Fertilizer Demand Functions Based on Production Functions Derived from Experimental Data: a Static Analysis; (508) Occupational Plans of Iowa Farm Boys; (509) Factors Related to Employment of Wives in a Rural Iowa County; (510) Factors Related to Interreligious Marriages in Iowa, 1953-57; (511) Interregional Competition and Prospective Shifts in the Location of Livestock Slaughter; (512) Survival Rates Among Religiously Homogamous and Interreligious Marriages; (513) Effects of Light and Soil Moisture on Forest Tree Seedling Establishment; (514) Analysis of Direct-Payment Methods for Hogs to Increase Hog Producers' Incomes; (515) Distributed Lag Inventory Analyses; (516) Migration and Adjustment of Farm and Nonfarm Families and Adolescents in Cedar Rapids, Iowa; (517) Beef-Cattle Production Functions in Forage Utilization; (518) Production Functions and Methods of Specifying Optimum Fertilizer Use Under Various Uncertainty Conditions for Hay; (519) Profit-Maximizing Plans for Soil-Conserving Farming in the Spring Valley Creek Watershed in Southwest Iowa; (520) Estimation of Soil Moisture Under Corn; (521) Regional Changes in Grain Production: An Application of Spatial Linear Programming

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  Agricultural Research Bulletins, Nos. 448-488

  Landy B. Altman Jr., Gordon C. Ashton, Grace M. Augustine, Randolf Baker, G. L. Barger, Ward W. Bauder, Ross V. Baumann, Ray Beneke, Alice Biester, Lida M. Burrill, Harold O. Carter, Damon V. Catron, Walter E. Chryst, Gerald W. Dean, John L. Dillon, John P. Doll, Beatrice Donaldson, E. R. Duncan, Eddie V. Easley, L. E. Everson, Lonnie Fielder, Loyd K. Fischer, Calvin R. Fremling, Wayne Fuller, Raymond O. Gaarder, Earl O. Heady, R. Burnell Held, H. B. Howell, S. M.A. Husain, Emil Jebe, Ronald D. Krenz, George W. Ladd, Marvin Laursen, Laurel D. Loftsgard, Harold C. Love, Mary S. Lyle, Arthur B. Mackie, Wilbur R. Maki, Dean E. McKee, Walter G. Miller, R. P. Nicholson, D. R. Nielsen, P. R. Nixon, Margaret A. Ohlson, Frank Orazem, Howard W. Ottoson, John T. Pesek, Glen Purnell, Allen Richards, Robert A. Rohwer, J. R. Runkles, John A. Schnittker, G. O. Schwab, R. H. Shaw, Geoffrey S. Shepherd, W. D. Shrader, Janice M. Smith, Wesley G. Smith, Vaughn C. Speer, Everett G. Stoneberg, Norman V. Strand, Pearl Swanson, John F. Timmons, Luther G. Tweeten, Odell L. Walker, Elisabeth Willis, and H. H. Yeh

  Volume 33, Bulletins 448-488. (448) Management Aspects of School Lunch Programs in Iowa; (449) Optimum Farm Plans for Beginning Tenant Farmers on Clarion-Webster Soils (An Application of Linear Programming); (450) Farm Planning for Maximum Profits on the Cresco-Clyde Soils in Northeast Iowa, And Comparison of Farm and Nonfarm Incomes for Beginning Farmers (An Application of Linear Programming; (451) Analysis of Returns from Farm and Nonfarm Employment Opportunities on Shelby-Grundy-Haig Soils; (452) Social Status and Occupational Prospects of Married Farm Laborers in Cherokee County, Iowa 1949; (453) Load Characteristics of Selected Highly Electrified Iowa Farms; (454) Application of Input-Output Analysis to a Regional Model Stressing Agriculture; (455) Economic Optima in Soil Conservation Farming and Fertilizer Use for Farms in the Ida-Monona Soil Area of Western Iowa; (456) Plans for Beginning Farmers in Southwest Iowa with Comparison of Farm and Nonfarm Income Opportunities; (457) Seasonal Changes in Soil Moisture as Related to Rainfall, Soil Type and Crop Growth; (458) Research on Irrigation of Corn and Soybeans at Conesville and Ankeny, Iowa, 1951 to 1959; (459) Effects of the Federal Programs for Corn and Other Grains on Corn Prices, Feed Grains Production and Livestock Production; (460) Soil Erosion Control in Process in Western Iowa; (461) Relative Efficiencies of Farm Tenure Classes in Intrafirm Resource Allocation; (462) New Procedures in Estimating Feed Substitution Rates and in Determining Economic Efficiency in Pork Production: II. Replacement Rates of Corn and Soybean Oilmeal in Fortified Rations for Growing-Fattening Swine on Pasture; (463) Fertilizer Production Functions for Corn and Oats: Including an Analysis of Irrigated and Residual Response; (464) Comparison of Methods and Blowers for the Purity Analysis of Kentucky Bluegrass Seed; (465) Evaluation of Some Soil Moisture Characteristics of Iowa Soils; (466) Progress and Problems in the Iowa Soil Conservation Districts Program: A Pilot Study of the Jasper Soil Conservation District; (467) Application of Linear Programming to the Study of Supply Responses in Dairying; (468) Food Intakes of 2,189 Women in Five North Central States; (469) Input-Output Analysis Emphasizing Regional and Commodity Sectors of Agriculture; (470) Educational Needs of Three Socio-Economic Groups of Rural Homemakers in Iowa; (471) Changes in Supply Functions and Supply Elasticities in Hog Production; (472) Production Surfaces and Economic Optima for Corn Yields with Respect to Stand and Nitrogen Levels; (473) Forecasting Beef Cattle and Hog Prices by Quarter-Years; (474) Statistical Analysis of Certain Institutional Variables in the Butter and Margarine Market; (475) Use of a Dynamic Model in Programming Optimum Conservation Farm Plans on Ida-Monona Soils; (476) Alternative parity Formula for Agriculture; (477) Consumer Preferences for Pork, Des Moines, Iowa; (478) Economy of Innovations in Dairy Farming and Adjustments to Increase Resource Returns; (479) Iowa Farm Operators' and Farm Landlords' Knowledge of, Participation in and Acceptance of the Old Age and Survivors Insurance Program; (480) Adjustments to Meet Changes in Prices and to Improve Incomes on Dairy Farms in Northeastern Iowa; (481) Analysis of Income Possibilities From Farm Adjustments in Southern Iowa: Including Production of Grade B Milk; (482) Biology of a Large Mayfly, Hexagenia bilineata (Say), of the Upper Mississippi River; (483) Biology and Possible Control of Nuisance Caddisflies of the Upper Mississippi River; (484) Cometitive Position of Small Dairy Herds on North-Central Iowa Farms; (485) Theories of Choice in Relation to Farmer Decisions; (486) Profit-Maximizing Plans and Static Supply Schedules for Fluid Milk in the Des Moines Milkshed; (487) Programming Procedures for Farm and Home Planning Under Variable Price, Yield and Capital Quantities; (488) Application of Game Theory Models to Decisions on Farm Practices and Resource Use

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  Agricultural Research Bulletins, Nos. 413-447

  Andrew R. Aandahl, Florence Adrian, Landy B. Altman Jr., Bernice Anderson, Stanley Balloun, Dorothea T. Basnett, Ross V. Baumann, Georgine A. Bischoff, Solomon Bloom, Bernard Bowlen, Mary Bowser, Owen L. Brough, William G. Brown, Helen W. Cellucci, Ruth Maxine Clark, E. S. Clifton, William Darcovish, Gerald W. Dean, J. Parry Dodds, Edna Douglas, E. R. Duncan, Alvin C. Egbert, Ercel S. Eppright, R. K. Frevert, J. C. Gilson, Grace Glenn, Shirley Borchardt Gluyas, C. B. Haver, Earl O. Heady, R. J. Hildreth, Virgil L. Hurlburt, N. L. Jacobson, Emil H. Jebe, Paul J. Jehlik, Harald R. Jensen, Joseph Kastelic, Oscar Kempthorne, Don Kirkham, Laurel D. Loftsgard, Bessie L. Loose, Belle Lowe, Abby L. Marlatt, K. R. Marvin, Robert McAlexander, Blynn C. McGrath, Dean E. McKee, Jack I. Northam, Russell O. Olson, Mary Brown Patton, Arnold Paulsen, John T. Pesek, G. A. Peterson, Allen Richards, Jan van Schilfgaarde, John A. Schnittker, J. M. Scholl, Russell Shaw, Geoffrey S. Shepherd, W. D. Shrader, Virginia D. Diswell, Joseph A. Stritzel, Dorothy Tyrrell, Ray E. Wakeley, Fred H. Wiegmann, and J. A. Zoellner

  Volume 32, Bulletins 413-447. (413) What Does the Iowa Farmer Want from Radio Market News?; (414) Estimate of the Volume of Farm Dwelling Construction in Iowa; (415) Retail Lumber Establishment and Farm Dwelling Construction in Iowa; (416) Farm Rental Practices and Problems in the Midwest; (417) How Do Iowa Farmers Obtain and Use Market News?; (418) Incomplete Block Designs with Blocks of Two Plots; (419) Economic Efficiency in Pasture Production and Improvement in Southern Iowa; (420) Load Characteristics of Southeastern Iowa Farms Using Electric Ranges; (421) Objective Grade Specifications for Slaughter Barrow and Gilt Carcasses; (422) Comparison of Costs of Service and Self-Service Methods in Retail Meat Departments; (423) Costs, Returns and Capital Requirements for Soil-Conserving Farming on Rented Farms in Western Iowa; (424) Crop Response Surfaces and Economic Optima in Fertilizer Use; (425) Resource Returns and Productivity Coefficients in Selected Farming Areas of Iowa, Montana and Alabama; (426) Optimum Combinations of Competitive Crops at Particular Locations (Applications of Linear Programming: 1); (427) Application of Input-Output Analysis to a Simple Model Emphasizing Agriculture (A Study of the Interdependence of Agriculture and Other Sectors of the National Economy; (428) Farm Size Adjustments in Iowa and Cost Economies in Crop Production for Farms of Different Sizes; (429) Costs and Returns for Soil-Conserving Systems of Farming on Ida-Monona Soils in Iowa; (430) Population Change and Net Migration in the North Central States, 1940-1950; (431) Economic Instability and Choices Involving Income and Risk in Livestock and Poultry Production; (432) Relationships Between Lard Production Methods, Volumes of Production, Costs and Characteristics of Lard Produced in Selected Packing Plants; (433) Marginal Productivity of Resources and Imputation of Shares for Cash and Share Rented Farms; (434) Nutrition of 9-, 10-, and 11-Year-Old Public School Children in Iowa, Kansas and Ohio; (435) Optimum Allocation of Resources Between Pasture Improvement and Other Opportunities on Southern Iowa Farms; (436) Physical and Mathematical Theories of the Tile and Ditch Drainage and their Usefulness in Design; (437) Optimum Combinations of Livestock Enterprises and Management Practices on Farms Including Supplementary Dairy and Poultry Enterprises (An Application of Linear Programming); (438) Application of Expectation Models to Livestock and Crop Prices and Products; (439) Combinations of Rotations and Fertilization to Maximize Crop Profits on Farms in North-Central Iowa (An Application of Linear Programming); (440) Optimum Farm Plans for Beginning Farmers on Tama-Muscatine Soils; (441) Production Functions, Isoquants, Isoclines and Economic Optima in Corn Fertilization for Experiments with Two and Three Variable Nutrients; (442) Least-Cost Rations and Optimum Marketing Weights for Broilers; (443) Least-Cost Rations and Optimum Marketing Weights for Turkeys; (444) Milk Production Functions, Hay/Grain Substitution Rates and Economic Optima in Dairy Cow Rations; (445) Analysis of the Efficiencies of Alternative Farm Leasing Arrangements (An Application of Linear Programming); (446) Effects of the USDA Corn Storage Program on Corn Carryover Stocks and Corn Utilization; (447) Uncertainty, Expectations and Investment Decisions for a Sample of Central Iowa Farmers

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  Agricultural Research Bulletins, Nos. 392-412

  Gordon C. Ashton, W. B. Back, M. P. Camery, Damon V. Catron, E. S. Clifton, Edna Douglas, Verne C. Finkner, Bruce Griffing, Earl O. Heady, Emil H. Jebe, Paul J. Jehlik, George G. Judge, Donald R. Kaldor, R. R. Kalton, Earl W. Kehrberg, R. D. Lane, Mary S. Lyle, A. L. McComb, L. V. Manderscheid, J. A. Nordin, John C. O'Byrne, G. A. Peterson, J. C. Purcell, Geoffrey S. Shepherd, John F. Timmons, Omar Wahby, Ray E. Wakeley, C. E. Wassom, Charles R. Weber, and Roger Woodworth

  Volume 31, Bulletins 392-412. (392) Educational Needs of Less Privileged homemakers in a Rural County in Iowa; (393) Improving Farm Rental Arrangements in Iowa; (394) Transferring Farm Property within Families in Iowa; (395) Structure of the Iowa Retail Lumber Industry; (396) Estimations of Optimum Plot Size Using Data from Bromegrass Uniformity Trials; (397) Analysis of Tomato Yield Components in Terms of Genotypic and Environmental Effects; (398) Interdependence Between the Farm Business and the Farm Household with Implications on Economic Efficiency; (399) Effects of Grass Competition Upon the Establishment of Hardwood Plantations in Iowa; (400) Effects of Certain Components of Simulated Hail Injury on Soybeans and Corn; (401) Productivity and Income of Labor and Capital on Marshall Silt Loam Farms in Relation to Conservation Farming; (402) Objective Grade Specifications for Slaughter Steer Carcasses; (403) Economics of Some Soil Conservation Practices; (404) Economic Instability and Choices Involving Income and Risk in Primary or Crop Production; (405) Economic Analysis of Trends in Beef Cattle and Hog Prices; (406) Significance of Soil Organic Phosphorus to Plant Growth; (407) Rural-Urban Migration in Iowa, 1940-50; (408) Exploratory Study of Expectations, Uncertainty and Farm Plans in Southern Iowa Agriculture; (409) New Procedures in Estimating Feed Substitution Rates and in Determining Economic Efficiency in Pork Production; (410) Application of Econometric Procedures to the Demands for Agricultural Products; (411) Genetic Factors Governing Resistance and Susceptibility of Oats to Puccinia coronata Corda var. avenae, F. and L., Race 57; (412) Resource Productivity and Returns on 160-Acre Farms in North-Central Iowa

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  Agricultural Research Bulletins, Nos. 378-391

  Carl W. Allen, Landy B. Altman Jr., Georgia Amick, George M. Beal, C. A. Black, Marie Budolfson, Ernest J. Buresh, Elma Crain, Walter T. Federer, Donald R. Fessler, J. R. Frazer, John C. Frey, L. C. Hammond, Earl O. Heady, Harald R. Jensen, Earl W. Kehrberg, Margaret Liston, Belle Lowe, Burord R. McClurg, Paulena Nickell, V. H. Nielsen, A. G. Norman, Louise J. Peet, Mildred Riedesel, J. D. Nord, Russel O. Olson, Kathryn Philson, O. J. Scoville, P. S. Shearer, Florence Busse Smith, Earl R. Swanson, Ray E. Wakeley, and Elisabeth Willis

  Volume 30, Bulletins 378-391. (378) Farm Family Housing Needs and Preferences in the North Central Region; (379) Agricultural Cooperatives in Iowa: Farmers' Opinions and community Relations; (380) Evaluation of Variance Components From a Group of Experiments with Multiple Classifications; (381) Returns From and Capital Required for Soil Conservation Farming Systems: A Study of a Specific Population of Farms and Soils; (382) Principles of Conservation Economics and Policy; (383) Economics of Crop Rotations and Land Use: A Fundamental Study in Efficiency with Emphasis on Economic Balance of Forage and Grain Crops; (384) Nutrient Uptake by Soybeans on Two Iowa Soils; (385) Defrosting and Cooking Frozen Meat; (386) Relationship of Crop-Share and Cash Leasing Systems to Farming Efficiency; (387) Demand and Diversity of Use of Electricity on 16 Farms in the Eastern Livestock Area of Iowa; (388) Resource Productivity in Iowa farming: With Special Reference to Uncertainty and Capital Use in Southern Iowa; (389) Cost of Manufacturing Butter: A Study Based on Data From 13 Iowa Creameries; (390) Substitution Relationships, Resource Requirements and income Variability in the Utilization of Forage Crops; (391) Some Obstacles to Soil Erosion Control in Western Iowa

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  Agricultural Research Bulletins, Nos. 363-377

  Pedro G. Cofina, C. G. del Valle, Edna Douglas, P. H. Elwood, Ercel S. Eppright, A. T. Erwin, Charles E. Friley, Neal Gross, Halbert M. Harris, Virgil L. Hurlburt, Paul J. Jehlik, Edwin J. Kyle, Merrill Langfitt, S. C. Litzenberger, Edward May, Gertrude May, A. L. McComb, I. E. Melhus, Antonio Barrios Mendoza, Albert S. Muller, L. M. Roberts, Robert A. Rohwer, Bryce Ryan, Enrique Garcia Salas, Leroy Schaffner, George Semeniuk, Geoffrey S. Shepherd, Edwin M. Shook, Hector M. Sierra, Edgar F. Vestal, William F. Sigler, Ray E. Wakeley, J. R. Wallin, Charles R. Weber, and E. J. Wellhausen

  Volume 29, Bulletins 363-377. (365) Rural Organization in Process: A Case Study of Hamilton County, Iowa; (366) Life History of the White Bass, Lepibema chrysops (Rafinesque), of Spirit Lake, Iowa; (367) Economic Appraisal of Iowa Farm Housing; (368) Changes in the Demand for Meat and Dairy Products in the United States Since 1910; (369) Some Fertilizer Experiments with Deciduous Forest Tree Seedlings on Several Iowa Soils; (370) Inheritance of Resistance to Specific Races of Crown and Stem Rust, to Helminthosporium Blight, and of Certain Agronomic Characters of Oats; (371) Plant Research in the Tropics;

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  Agricultural Research Bulletins, Nos. 346-362

  Arnold E. Baragar, Rachel Barlowe, C. A. Black, C. A. Bower, Mary A. Clem, G. E. Dickerson, J. C. Eldredge, Walter T. Federer, Henry Giese, J. C. Gilman, Earl O. Heady, S. Milton Henderson, E. A. Hollowell, Paul G. Homeyer, Duane Isely, Robert R. Kalton, J. B. McClelland, Darrell D. Morey, C. M. Nagel, Louise J. Peet, Gail M. Redfield, Thomas G. Scott, G. Semeniuk, J. A. Starrak, John F. Timmons, A. J. Vessel, Ray E. Wakeley, Charles R. Weber, and Carroll P. Wilsie

  Volume 28, Bulletins 346-362. (346) Test of the Performance of Portable Electric Mixers for Household Use; (347) Punched Card and Calculating Machine Methods for Analyzing Lattice Experiments Including Lattice Squares and the Cubic Lattice; (348) Domestic Spark Arresters; (349) Observations on Mold Development and on Deterioration in Stored Yellow Dent Shelled Corn; (350) Pattern of Farm Size Adjustment in Iowa; (351) Investigations in Seed Classification by Family Characteristics; (352) Soil Type and Soil Management Factors in Hemp Production; (353) Comparative Analysis of Red Fox Feeding Trends on Two Central Iowa Areas; (354); Composition of Hog Carcasses as Influenced by Heritable Differences in Rate and Ecomony of Grain; (355) Effectiveness of Roofing Nails for Application of Metal Building Sheets; (356) Changes in Iowa Popluation; (357) Effect of Time of Cutting Red Clover on Forage Yields, Seed Setting and Chemical Composition; (358) Breeding Behavior at Successive Generations Following Hybridization in Soybeans; (359) Effect of Injury Simulating Hail Damage to Soybeans; (360) Expansion of Vocational Education in Agriculture in Iowa; (361) Farm Ownership in the midwest; (362) Studies on the Forms and Availablity on Soil Organic Phosphorus; (363) Extent and Causes of Variability in Clinton Oats; (364) Farm Fence End and Corner Design

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  Agricultural Research Bulletins, Nos. 321-345

  Ewert Aberg, J. Oscar Albert, A. C. Bunce, Hester Chadderdon, C. I. Draper, A. J. Englehorn, Walter T. Federer, W. H. Fuller, B. W. Hammer, Earl O. Heady, Wen-Chun Ho, W. H. Hoecker, John A. Hopkins, Earl E. Houseman, Raymond J. Jessen, Max W. Kneedy, C. B. Lane, Jerome C.R. Li, H. F. Long, Eugene G. McKibben, M. Mortensen, C. M. Nagel, A. G. Norman, M. E. Paddick, David G. Paterson, R. H. Porter, Margaret G. Reid, Wayne A. Robbins, J. A. Schulz, Geoffrey S. Shepherd, J. A. Starrak, B. H. Thomas, Margaret E. Tiffany, Charles R. Weber, Carroll P. Wilsie, and H. J. Zahrndt

  Volume 27, Bulletins 321-345. (321) Proper Size and Location of Corn Stabilization Stocks; (322) Some Farm Family Gardens Pay in Dollars; (323) Cost, Distribution and Utilization of Farm Machinery in Iowa; (324) Adjusting Crop Acreages for War Production to the Soil Resources of Iowa; (325) Bacteriology of Cheese: VII. Calcium and Phosphorus Contents of Various Cheeses, Including Relationship to Bacterial Action in the Manufacturing Procedures; (326) Nutritive Value of Corn Oil Meal and Feather Protein; (327) General Agriculture in the High Schools of Iowa; (328) Classification of the Organisms Important in Dairy Products: IV. Bacterium linens; (329) Statistical Investigations of Farm Sample Surveys Taken in Iowa, Florida and California; (330) Coordination of Wheat and Corn Price Controls; (331) Vegetative Development of Inbred and Hybrid Maize; (332) Soil-Inhabiting Fungi Attacking the Roots of Maize; (333) Design and Statistical Analysis of Some Confounded Factorial Experiments; (334) Testing the Quality of Seeds for Farm and Garden; (335) Teacher Supply and Demand in Home Economics in Iowa, 1935-1941; (336) Effect of Various Adjuvants to the Diet of Rats on the Changes in Body Fats Induced by Feeding Soybean Oil; (337) Materials-Balance Method for Determining Losses of Butterfat in the Creamery; (338) Epiphytology and Control of Sugar Beet Leaf Spot Caused by Cercospora beticola Sacc.; (339) Bacteriology of Butter: VIII. (IX). Salt Distribution in Butter and its Effect on Bacterial Growth; (340) Further Experiments with the Iowa Air Blast Seed Separator for the Analysis of Small-Seeded Grasses; (341) Pre-Harvest Sampling of Soybeans for Yield and Quality; (342) Retting of Hemp: I. Field Retting of Hemp in Iowa; (343) Retting of Hemp: II. Controlled Retting of Hemp; (344) Retting of Hemp: III. Biochemical Changes Accompanying Retting of Hemp; (345) Germinability of Treated and Untreated Lots of Vegetable Seed in Pythium-Infested Soil and in the Field

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  Agricultural Research Bulletins, Nos. 304-320

  K. M. Autrey, E. W. Bird, D. F. Breazeale, C. Y. Cannon, W. G. Cochran, R. T. Corley, Peter Diebold, Paul L. Errington, D. L. Espe, B. W. Hammer, John A. Hopkins, Raymond J. Jessen, Adolf Kozlik, H. F. Long, H. Elliott McClure, A. L. McComb, C. E. Parmelee, Bryce Ryan, Paul R. Record, Earl Sanders, J. A. Starrak, Norman V. Strand, and Lawrence W. Witt

  Volume 26, Bulletins 304-320. (304) Statistical Investigation of a Sample Survey for Obtaining Farm Facts; (305) Efficiency of Dairy Rations Containing Various Quantities of Grain; (306) Social and Ecological Patterns in the Farm Leadership of Four Iowa Townships; (307) Economic Problems of Low Income Farmers in Iowa; (308) Statistical Comparisons of Record-Keeping Farms and a Random Sample of Iowa Farms for 1939; (309) Twenty-one Years of Iowa Farm Records; (310) Ecology and Management of the mourning Dove, Zenaidura macroura (Linn.) in Cass County, Iowa; (311) Demand for Fats and Oils in the Soap Industry; (312) Factor in Oat Hulls Essential for the Growth of Chicks; (313) Problems of Beginning Farmers in Iowa; (314) Mycorrhizae and Phosphorus Nutrition of Pine Seedlings in a Prairie Soil Nursery; (315) Some Investigations on the Suitability of the Township as a Unit for Sampling Iowa Agriculture; (316) Chemistry of Butter and Butter Making: V. Methods for Determining the pH of Cream with Standardized Acidity and of Butter Made from this Type of Cream; (317) Development of a Bob-White Management Area in Southern Iowa; (318) Some Additional Lattice Square Designs; (319) Water Supplies of Butter Manufacturing Plants; (320) Analysis of Mink Predation Upon Muskrats in North-Central United States

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  Agricultural Research Bulletins, Nos. 281-303

  R. L. Anderson, E. W. Bird, Charles T. Bridgman, E. O. Brown, O. H. Brownlee, H. W. Bryant, W. F. Buchholz, W. G. Cochran, Gertrude M. Cox, Robert C. Eckhardt, N. E. Fabricius, Henry Giese, B. W. Hammer, T. I. Hedrick, Clifford G. Hildreth, Wen-Chun Ho, W. H. Hoecker, E. E. Houseman, C. B. Lane, H. F. Long, Faith Madden, T. J. Maney, I. E. Melhus, C. H. Meredith, Philip Minges, Louise J. Peet, B. S. Pickett, R. H. Porter, T. W. Schultz, G. F. Sprague, J. Lloyd Spaulding, George Franklin Stewart, Norman V. Strand, and Lawrence Witt

  [Volume 25, Bulletins 281-303. (281) Analysis of Lattice and Triple Lattice Experiments in Corn Varietal Tests: I. Construction and Numerical Analysis, II. Mathematical Theory; (282) Performance of Electric Roasters; (283) Bacteriology of Cheese: V. Defects of Blue (Roquefort-Type) Cheese; (284) Quality of Butter Made from Vacuum-Pasteurized and Vat-Pasteurized Lots of the Same Creams; (285) Classification of the Organisms Important in Dairy Products: III. Pseudomonas putrefaciens; (286) Precast Tile Beam Floor; (287) Pythium GraminicolaSubr. on Barley; (288) Farm Taxes and the Cost of Public Services in Relation to Land Resources in Ringgold County, Iowa; (289) Examination of the Accuracy of Lattice and Lattice Square Experiments on Corn; (290) Flavor Development in Salted Butter by Pure Cultures of Bacteria, Preliminary Results; (291) Bacteriology fo Cheese: VI. Relationship of Fat Hydrolysis to the Ripening of Cheddar Cheese; (292) Transmission Tests of Maize Mutants Induced by Ultra-Violet Radiation; (293) Incoming and Outgoing Payments of Iowa Farm Families; (294) Viability and Germination of Seeds of Convolvulus Arvensis L. and Other Perennial Weeds; (295) Strawberry Production in Southeastern Iowa as Influenced by Varieties, Fertilizers and Cultural Practices; (296) Influence of Cultural Factors on Alfalfa Seeding Infection by Pythium debaryanum Hesse; (297) Tables of Orthogonal Polynominal Values Extended to N=104; (298) Effects of Crop Acreage Control Features of AAA on Feed Production in 11 Midwest States; (299) Poultry Products Research: A Guide for Research Workers, Including a List of Some Problems in Project Form; (300) Estimation of Income Tax Revenue and Incidence; (301) Diacetyl and Acetylmethylcarbinol Production in the Manufacture of Unsalted Butter; (302) Methods of Computing a Regression of Yield on Weather; (303) Prices of Farm Products in Iowa, 1851-1940

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  Agricultural Research Bulletins, Nos. 260-280

  F. J. Babel, Henry J. Barre, Fred J. Beard, R. C. Bentley, J. H. Buchanan, R. K. Buck, T. J. Claydon, Arval Erikson, Paul L. Errington, N. E. Fabricius, Charles M. Genaux, W. D. Goodsell, Frances Hamerstron, F. N. Hamerstron Jr., B. W. Hammer, J. A. Hopkins, Emil H. Jebe, G. C. Kent, Arnold J. King, John G. Kuenzel, H. F. Long, Belle Lowe, C. C. Malone, Marcus A. Maxon, William G. Murray, P. Mabel Nelson, William H. Nicholls, B. S. Pickett, E. A. Prill, Paul E. Quintus, H. W. Richey, Frank Robotka, Geoffrey S. Shepherd, Norman V. Strand, and Walter W. Wilcox

  Volume 24, Bulletins 260-280. (260) Differences in Iowa Farms and Their Significance in the Planning of Agricultural Programs; (261) Post-War Developments in the Marketing of Cheese; (262) Local Hog Marketing Practices in Iowa; (263) Bacteriology of Butter: VII. Effect of Reworking Butter on Growth of Bacteria; (264) Bacteriology of Cheese: IV. Factors Affecting the Ripening of Swiss-Type Cheese Made from Pasteurized Milk; (265) Butterfat Procurement by Creameries in Butler County, Iowa; (266) Corporate Land, Foreclosures, Mortgage Debt and Land Values in Iowa, 1939; (267) Bacteriology of Butter: VIII. Relationship of Achromobacter putrefaciens to the Putrid Defect of Butter; (268) Diacetyl and Other Alpha-Dicarbonyl Compounds with Special Reference to the Flavor of Butter; (269) Defects Which Reduce Quality and Yield of Oak-Hickory Stands in Southeastern Iowa; (270) Could Hogs Be Sold by Carcass Weight and Grade in the United States?; (271) Relation of Wall Construction to Moisture Accumulation in Fill-Type Insulation; (272) Economic Study of the Baby Beef Enterprise in Southern Iowa; Experiment in Pre-Harvest Sampling of Wheat Fields; (273) Inhibitor Produced by Diplodia zeae(Schw.) Lév.; (275) Cooperation in Grain Marketing in Iowa; (277) Great Horned Owl and Its Prey in North-Central United States; (278) Economic Study of the Dairy Enterprise in Northeastern Iowa; (279) Physical and Chemical characteristics of Lards and Other Fats in Relation to Their Culinary Value: III. For Frying Purposes; (280) Effect of Hormodin A, a Growth Substance, on the Rooting of Cuttings

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  Agricultural Research Bulletins, Nos. 251-259

  A L. Bakke, Gertrude M. Cox, A. U. Englehorn, W. G. Gaessler, Wylie D. Goodsell, R. A. Griffin, L. C. Grove, B. W. Hammer, L. A. Harriman, Edwin R. Henson, W. E. Loomis, Belle Lowe, William G. Murray, F. E. Nelson, P. Mabel Nelson, and Martin G. Weiss

  Volume 23, Bulletins 251-259. (251) Curing and Storage of Alfalfa Hay; (252) Yield Tests and Land Valuation; (253) Growth and Flowering of the Gladiolus; (254) Relation of Root Reserves to Control of European Bindweed Convolvulus arvensis L.; (255) Physical and Chemical Characteristics of Lards and Other Fats in Relation to Their Culinary Value: II. Use in Plain Cake; (256) Slow Acid Production by Butter Cultures; (257) Balanced Incomplete Block and Lattice Square Designs for Testing Yield Differences Among Large Numbers of Soybean Varieties; (258) Cost and Utilization of Power and Labor on Iowa Farms; (259) Experiments on the Control of European Bindweed (Convolvulus arvensis L.)

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  Agricultural Research Bulletins nos. 242-250

  J. H. Buchanan, E. S. Haber, B. W. Hammer, J. F. Long, Belle Lowe, George L. McNew, William G. Murray, P. Mabel Nelsons, William H. Nicholls, J. A. Schulz, D. R. Theophilus, and Ray E. Wakeley

  Volume 22, Bulletins 242-250. (242) Physical and Chemical Characteristics of Lards and Other Fats in Relation to Their Culinary Value: I. Shortening value in Pastry and Cookies; (243) Study of Drouth Resistance in Inbred Strains of Sweet Corn Zea Mays Var. Rugosa; (244) Influence of Growth Temperature on the Thermal Resistance of Some Bacteria from Evaporated Milk; (245) Differential Reaction of Apple Varieties to Gymnosporangium Juniperi-Virginianae; (246) Bacteriology of Butter: VI. Effect of Moisture Dispersion in Butter on Growth of Bacteria; (247) Fluorine Toxicosis in the Albino Rat; (248) Farm Mortgage Foreclosures in Southern Iowa 1915-1936; (249) Differential Mobility Within the Rural Population in 18 Iowa Townships, 1928 to 1935; (250) Post-War Developments in the Marketing of Butter

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  Agricultural Research Bulletins, Nos. 222-231

  A L. Bakke, Duke V. Layton, E J. Wellhausen, O R. Ause, E R. Bartle, E W. Bird, D F. Breazeale, Harold F. Eisele, H C. Forester, B W. Hammer, R V. Hussong, C A. Iverson, H F. Long, Eugene G. McKibben, O E. Ross, Leslie M. Weetman, and J J. Willingham

  Volume 20, Bulletins 222-231. (222) Control of Leafy Spurge, Euphorbia Esula L.; (223) Parasitism of Collectotrichum Lagenarium (Pass.) Ell. And Halst.; (224) Genetics of Resistance to Bacterial Wilt in Maize; (225) Classification of the Organisms Important in Dairy Products: II. Pseudomonas fragi; (226) Design of Agronomic Experiements for Plots Differentiated in Fertility by Past Treatments; (227) Chemistry of Butter and Butter Making: IV. The Relationships Among the Cream Acidity, the Churning Loss and the Churning Time; (228) Inheritance and Correlation of Shape, Size and Color in the Watermelon, Citrullus Vulgaris Schrad.; (229) Influence of Environmental Factors on the Growth of the Corn Plant Under Field Conditions; (230) Oxidized Flavors in Strawberry Ice Cream; (231) Some Kinematic and Dynamic Studies of Rigid Transport Wheels for Agricultural Equipment

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  Agricultural Research Bulletins, Nos. 232-241

  A. E. Brandt, C. R. Brewer, Virginia Britton, G. N. Davis, E. L. Erickson, B. W. Hammer, W. E. Hendershott, John P. Himmel, Howard L. Hyland, C. B. Lane, M. B. Michaelian, Robert Penquite, R. H. Porter, Margaret G. Reid, Rainer Schickele, C. H. Werkman, and F. S. Wilkins

  Volume 21, Bulletins 232-241. (232) Influence of Temperature and Humidity Upon the Growth of Chick Embryos in a Mechanically Ventilated Incubator; (233) Effect of Aeration Under Pressure on Diacetyl Production in Butter Cultures; (234) Tests of Significance in Reversal or Switchback Trails; (235) Experiments with Modified Techniques for the Determination of Purity and Viability of Bluegrass Seed, Poa Pratensis L.; (236) Iowa Incomes as Reported in Income Tax Returns; (237) Bacteriology of Cheese: III. Some Factors Affecting the Ripening of Blue (Roquefort Type) Cheese; (238) Indexing Farmers' Seed Lots for Seed-Borne Organisms and Response to Seed Disinfectants; (239) Laboratory Tests of Field Crop Seeds as Indicators of Seeding Value; (240) Significance and Technique of Dry Matter Determinations in Yield Tests of Alfalfa and Red Clover; (241) Socio-Economic Phases of Soil Conservation in the Tarkio Creek Area: Economics of Agricultural Land Use Adjustments. II

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  Agricultural Research Bulletins, Nos. 202-209

  Agricultural Experiment Station, Iowa State College of Agriculture and Mechanic Arts; N. F. Waters; W. V. Lambert; R. H. Walker; P. E. Brown; Jay L. Lush; M. B. Michaelian; B. W. Hammer; H. F. Long; Henry Giese; H. J. Barre; J. Brownlee Davidson; J. J. Mark; and Rainer Schickele

  Volume 18, Bulletins 202-209. (202) Inbreeding in the White Leghorn Fowl; (203) Chemical Analyses of Iowa Soils for Phosphorus, Nitrogen and Carbon: a Statistical Study; (204) Genetic Aspects of the Danish System of Progeny--Testing Swine; (205) Oxidation of Acetylmethylcarbinol to Diacetyl in Butter Cultures; (206) Classification of the Organisms Important in Dairy Products; (207) Masonry Barn Design and Construction; (208) Relation of Reserves to Cold Resistance in Alfalfa; (209) Economics of Agricultural Land Use Adjustments: I. Methodology in Soil Conservation and Agricultural Adjustment Research

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  Agricultural Research Bulletins Nos. 210-221

  Charles S. Dorchester, W. L. Slater, B. W. Hammer, Louise J. Peet, Lucille O. MacDonald, Belle Lowe, E. W. Bird, H. A. Derby, George L. McNew, William P. Martin, R. H. Walker, P. E. Brown, Roy A. Grout, John C. Eldredge, V. T. Stoutemyer, and N. E. Fabricius

  Volume 19, Bulletins 210-221. (210) Effect of Electric Current on Certain Crop Plants; (211) Changes in the Acetylmethylcarbinol Plus Diacetyl Content of Butter; (212) Utilization of Heat from Electric Surface Units by Certain Cooking Utensils; (213) Starting Baked Products in Cold Versus Preheated Ovens; (214) Chemistry of Butter and Butter Making: III. The Relationships Between (1) the Percentage Fat and (2) the Protein Percentages of Cream and the Churning Loss; (215) Care of Meat in the Household Refrigerator; (216) Crown Infection of Corn by Diplodia zeae; (217) Occurrence of Azotobacter in Iowa Soils and Factors Affecting Their Distribution; (218) Influence of Size of Brood Cell Upon the Size and Variability of the Honeybee; (219) Effect of Injury in Imitation of Hail Damage on the Development of Small Grain; (220) Regeneration in Various Types of Apple Wood; (221) Influence of the Type of Butter Culture and Its Method of Use on the Flavor and Keeping Quality of Salted Butter

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  Agricultural Research Bulletins, Nos. 185–191

  Agricultural Experiment Station, Iowa State College of Agriculture and Mechanic Arts; J. C. Eldredge; Margaret G. Reid; E. W. Bird; H. W. Sadler; C. A. Iverson; W. J. Henderson; J. Brownlee Davidson; Edgar V. Collins; Eugene G. McKibben; C. B. Lane; B. W. Hammer; G. L. Stahly; C. H. Werkman; and M. B. Michaelian

  Volume 16, Bulletins 185-191. (185) Effect of Injury in Imitation of Hail Damage on the Development of the Corn Plant; (186) Status of Town and Village Housing in Iowa; (187) Preparation of a Non-Desiccated Sodium Caseinate Sol and its Use in Ice Cream; (188) Yellow Dwarf, a Virus Disease of Onions, and Its Control; (189) Tractive Efficiency of the Farm Tractor; (190) Bacteriology of Cheese: II. Effect of Lactobacillus casei on the Nitrogenous Decomposition and Flavor Development in Cheddar Cheese Made from Pasteurized Milk; (191) Reduction of Acetylmethylcarbinol and Diacetyl to 2,3-Butylene Glycol by the Citric Acid Fermenting Streptococci of Butter Cultures

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  Agricultural Research Bulletins, Nos. 192–201

  Agricultural Experiment Station, Iowa State College of Agriculture and Mechanic Arts; F. D. Perry; Sam H. Thompson; Paul L. Miller; Harold L. Wilcke; Joseph Jay Wilson; Harold L. Dean; R. H. Walker; Hartzell C. Dean; A. L. Bakke; Glen N. Davis; Barton Morgan; W. H. Lancelot; Paul L. Errington; and F. N. Hamerstrom

  Volume 17, Bulletins 192-201. (192) Influences of Rations and Storage on the Physical Characteristics of Eggs; (193) Method of Analyzing the Effectiveness of Local Livestock Marketing Cooperatives in Selling Hogs; (194) External Measure of Egg Viscosity; (195) Pathological Relationship Between the Host and Parasite in Varieties and Strains of Watermelons Resistant to Fusarium Niveum E. F. S.; (196) Some Bacteriological and Chemical Effects of Calcium and Magnesium Limestones on Certain Acid Iowa Soils; (197) Effects of Liming on the Liberation of Potassium in Some Iowa Soils; (198) Leafy Spurge, Euphorbia Esula L.; (199) Some of the Factors Influencing the Infection and Pathogenicity of Ustilago Zeae (Beckm.) Unger on Zea Mays L.; (200) Possible Intermediate Step in the Reorganization of Rural Elementary Education in Iowa; (201) Northern Bob-White's Winter Territory

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  Agricultural Research Bulletins, Nos. 175–184

  Agricultural Experiment Station, Iowa State College of Agriculture and Mechanic Arts; E. W. Bird; D. F. Breazeale; G. C. Sands; Joe L. Robinson; P. K. Whelpton; R. H. Walker; P. E. Brown; M. B. Michaelian; B. W. Hammer; George W. Snedecor; Gertrude M. Cox; Lenore E. Sater; Paul L. Harding; C. B. Lane; John A. Hopkins Jr.; and Paul L. Taylor

  Volume 15, Bulletins 175-184. (175) Chemistry of Butter Making: II. The Nature of the Fatty Materials in Buttermilk and the significance of Certain Buttermilk Testing Methods; (176) Physiologic Factors Affecting the Germination of Seed Corn; (177) Iowa's Population Prospect; (178) Effects of Lime on the Hydrogen-Ion Concentration and Base Exchange Complex of Gundy Silt Loam; (179) Studies on Acetylmethylcarbinol and Diacetyl in Dairy Products; (180) Disproportionate Subclass Numbers in Tables of Multiple Classification; (181) Passing an Alternating Electric Current Through Food and Fruit Juices; (182) Physiological Behavior of Grimes Golden Apples in Storage; 9183) Bacteriology of Cheese: I. Effect of Pasteurizing the Milk on the Nitrogenous Decomposition in Cheddar Cheese; (184) Cost of Production in Agriculture

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  Agricultural Research Bulletins, Nos. 167–174

  Agricultural Experiment Station, Iowa State College of Agriculture and Mechanic Arts; C. S. Reddy; Edgar F. Vestal; B. W. Hammer; M. A. Collins; David C. Fairburn; Rainer Schickele; Theodore W. Schultz; Thomas Theodore Milby; W. Hillman Willis; and Margaret G. Reid

  Volume 14, Bulletins 167-174. (167) Resistance of Dent Corn to Basisporium gallarum Moll.; (168) Pathogenicity, Host Response and Control of Cercospora Leaf-Spot of Sugar Beets; (169) Numbers of Lipolytic Bacteria in Various Dairy Products, as Determined with Nile-Blue Sulfate; (170) Growth Responses of the Gladiolus as Influenced by Storage Temperatures; (171) Competitive Position of Lard in the Market of Animal and Vegetable Fats and Oils; (172) Factors Influencing a malformation of the Leg Bones of Growing Chickens; (173) Metabolism of Some nitrogen-Fixing Clostridia; (174) Status of Farm Housing in Iowa

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  Agricultural Research Bulletins, Nos. 146–156

  Agricultural Experiment Station, Iowa State College of Agriculture and Mechanic Arts; R. S. Farmer; B. W. Hammer; P. E. Brown; R. H. Walker; A. W. Young; D. R. Porter; I. E. Melhus; Henry Giese; C. Y. Cannon; O. W. Park; C. W. Knox; W. V. Lambert; D. L. Espe; E. N. Hansen; M. B. Michaelian; and William G. Murray

  Volume 12, Bulletins 146-156. (146) Studies on the Development of Butter Cultures from Mixtures of Organisms; (147) Methods for Determining Carbon Dioxide Production in Soils; (148) Some Chemical and Bacteriological Effects of Various Kinds and Amounts of Lime on Certain Southern Iowa Soils; (149) Pathology of Fusarium niveum (EFS.) and the Development of Wilt Resistant Strains of Citrullus vulgaris (Schrad.); (150) Length and Floor Construction of Dairy Stalls; (151) Studies on the Change in Nectar Concentration Produced by the Honeybee, Apis mellifera; (152) Factors Influencing Egg Production: III. The Association of the Date of Hatch with Date of First Egg, Sexual Maturity and Egg Production in S. C. White Leghorns; (153) Selection for Resistance to Fowl Typhoid in the Chicken with Reference to Its Inheritance; (154) Normal Growth in Dairy Cattle; (155) Relationship of Acetylmethylcarbinol and Diacetyl to Butter Cultures; (156) Economic Analysis of Farm Mortgages in Story County, Iowa, 1854–1931

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  Agricultural Research Bulletins, Nos. 157–166

  Agricultural Experiment Station, Iowa State College of Agriculture and Mechanic Arts; Arthur W. Young; Dean A. Anderson; H. C. Olson; B. W. Hammer; John A. Hopkins Jr.; Theodore W. Schultz; A. G. Black; F. Scott Wilkins; E. V. Collins; Arthur A. Bryan; Geoffrey S. Shepherd; A. L. Bakke; N. L. Noecker; and Donald E. Bliss

  Volume 13, Bulletins 157-166. (157) Winogradsky Spontaneous Culture Method for Determining Certain Soil Deficiencies; (158) Production of Gum by Certain Species of Rhizobium; (159) Bacteriology of Butter: V. Studies on the Microorganisms in Churns; (160) Uses of Efficiency Factors in Analysis of Farm Records; (161) Variations in Swine Prices within Iowa Including a Study in Statistical Procedure; (162) Effect of Time, Depth and Method of Plowing Upon Yield and Eradication of Biennial Sweet Clovers; (163) Factors Affecting Experimental Error in Field Plot Tests with Corn; (164) Annual Fluctuations in the Price of Corn; (165) Relation of Moisture to Respiration and Heating in Stored Oats; (166) Relation of Moisture to Respiration and Heating in Stored Oats; (166) Pathogenicity and Seasonal Development of Gymnosporangium in Iowa

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  Agricultural Research Bulletins, Nos. 133–145

  Agricultural Experiment Station, Iowa State College of Agriculture and Mechanic Arts; John M. Evvard; P. S. Shearer; E. W. Lindstrom; B. W. Hammer; R. V. Hussong; F. B. Smith; P. E. Brown; C. Y. Cannon; J. A. Nelson; Merle T. Jenkins; Fisk Gerhardt; R. H. Walker; B. J. Firkins; Geoffrey S. Shepherd; H. C. Olson; George C. Decker; E. W. Bird; D. F. Breazeale; and H. A. Derby

  Volume 11, Bulletins 133-145. (133) Inheritance of Color and Horns in Blue-Gray Cattle II; (134) Bacteriology of Butter: I. Influence of the Distribution of the Non-Fatty Constituents on the Changes in Bacterial Content During Holding; (135) Nitrate Assimilation in Soils; (136) Supplements to a Milk Diet for Dairy Calves; (137) Bacteriology of Butter: II. A Method for the Microscopic Examination of Butter; (138) Gene Influencing the Composition of the Culm in Maize; (139) Measurement of the Degree of Saturation of Soils with Bases; (140) Secular Movement of Corn Prices; (141)Bacteriology of Butter: III. A Method for studying the Contamination from Churns; (142) Genetic Tests for Linkage Between Row Number Genes and Certain Qualitative Genes in Maize; (143) Biology of the Stalk Borer Papaipema nebris (Gn.); (144) Chemistry of Butter and Butter Making: I. A Comparison of Four Methods for the Analysis of Butter with an Explanation of a Discrepancy Found to Exist in the Fat Determinations; (145) Bacteriology of Butter: IV. Bacteriological Studies on Surface Taint Butter