1. Allen, B. M., The embryonic development of the ovary and testis of the mammals. Amer. J. Anat.3 (1904).
2. Allen, B. M., The origin of the sex-cells of Amia and Lepidosteus. Anat. Rec.3 (1909).
3. Allen, B. M., An important period in the history of the sex-cells of Rana pipiens. Anat. Anz.31 (1907).
4. Allen, B. M., The origin of the sex-cells of Chrysemys. Anat. Anz.29 (1906).
5. Allen, B. M., A statistical study of the sex-cells of Chrysemys marginata. Anat. Anz.30 (1907).