1945. An annotated checklist and key to the snakes of Mexico.
Bull. U. S. Natl. Mus., 187: iv + 239 pp., October 5.
1948. An annotated checklist and key to the amphibia of
Mexico. Bull. U. S. Natl. Mus., 194: iv + 118 pp., June 17.
1950. An annotated checklist and key to the reptiles of Mexico
exclusive of the snakes. Bull. U. S. Natl. Mus., 199: v + 253
pp., October 26.