Iowa State Journal of Research



The Efficacy of the Ultra-violet Light Sources in Killing Bacteria Suspended in Air. B.A. Whisler pages 215-232

Anaerobic Decomposition of and Gastifacation of Cornstalks by Thermophiles. G.H. Nelson, R.P. Straka, and Max Levine pages 233-252

The Dissimilation of Phosphoglyeric Acid and Hexosediphosphate by Aerobacter indologenes. R.W. Stone, M.N. Mickelson, and C.H. Werkman pages 253-260

The General Differential Operator. Fred Robertson pages 261-266

Insects as Vectors of Yellow Dwarf, a Virus Disease of Onions. H..D. Tate pages 267-294

Stresses in an Orthotropic Elastic Layer. R.H. Tripp and D. L. Holl pages 295-304

Effect of pH on the Toxicity of Nicotine Injected into the Cockroach Periplaneta americana (L.). Charles H. Richardson and L.O. Ellisor pages 305-316

Nature of Eimeria nieschulzi-growth-promoting Potency of Feeding Stuffs. I. Positive of Gray Shorts. Elery R. Becker pages 317-322

Some New and Heretofore Unrecorded Nabidae (Hemiptera). Halbert M. Harris pages 323-332