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