D. Keppel

THE EFFECT OF CHOLINE ON THE ABILITY OF HOMOCYSTINE TO REPLACE METHIONINE IN THE DIET

A. Moyer, J. Chandler, V. D. Vigneaud, 1939 .

EFFECTS OF COLCHICINE ON THE CLEAVAGE OF THE FROG'S EGG (RANA PIPIENS)

A. B. Dawson, D. Keppel, 1939 .