C. Funk: The Vitamines (Williams and Wilkins Co., Baltimore, 1922).

W. H. Eddy: The Vitamine Manual (Williams and Wilkins Co., Baltimore, 1921).

H. C. Sherman: "The Vitamins." Physiological Reviews, volume 1, page 598, 1921.

"Vitamine Symposium" (Papers presented before the division of Biological Chemistry at the meeting of the American Chemical Society, Sept. 6 to 10,1921), Journal of Industrial and Engineer-ing Chemistry, volume 13, page 1102, 1921.

A. F. Hess: "Newer Aspects of Some Nutritional Disorders." Journal of the American Chemical Society, volume 76, page 693, 1921.

Katherine Blunt and Chi Che Wang: "The Present Status of Vitamines." Journal of Home Economics, volume 13, page 97, 1921.

Arthur Harden: "Vitamines and the Food Supply." Journal of the Society of Chemical Industry, volume 40, page 19, 1921.

2 These give reviews of the entire subject.