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Bulletin

Volume 26 (1933)

Number 303
Thermal conductivity and surface treatment of silo walls

Number 304
What determines the length of life of prepared roll roofings?

Number 305
Effects of inoculation and liming on alfalfa grown on the Grundy silt loam

Number 306
Cooperation in agriculture, livestock marketing

Number 307
Corporate-owned land in Iowa

Number 308
Irrigation for vegetable crops in Iowa

Number 309
Soybeans in Iowa farming