1. The relation of nutrition to production and hatchability of chicken eggs;Bethke;II. Effects of choline chloride, methionine, and certain animal and marine products. Poultry Sci.,1946
2. The relation of nutrition to the production and hatchability of chicken eggs;Bethke;III. Effect of pantothenic acid, nicotinic acid, pyridoxine, folic acid, biotin, and certain marine products. Poultry Sci.,1947
3. Seasonal variation in hatchability and its relation to the unidentified dietary factor in cow manure;Groschke;Poultry Sci.,1947
4. Cow manure as a source of certain vitamins for growing chickens;Hammond;Poultry Sci.,1942
5. The "In Vitro" synthesis of a chick growth promoting factor in hen feces;McGinnis;Poultry Sci.,1947