Losses of Vitamin A and Carotene from Feeds During Storage.

28 p

The Relation of the Spectro Vitamin A and Carotene Content of Butter to its Vitamin A Potency Measured by Biological Methods.

21 p

The Vitamin A Potency of Commercial Butters Sold in Texas.

12 p

The Riboflavin Content of Some Animal Feeds and Some Human Foods.

18 p