12. Montgomery, T. H., jr., 1898. The Spermatogenesis in Pentatoma up to the Formation of the Spermatid, Zool. Jahrb., vol. 12.
13. Montgomery, T. H., jr., 1898. Chromatin Reduction in the Hemiptera: a Correction, Zool. Anz., vol. 22.
13a. Montgomery, T. H., jr., 1898. Observations on Various Nucleolar Structures of the Cell, Biol. Lect. of the Woods Holl Laboratory, 1898.
14. Montgomery, T. H., jr., 1900. The Spermatogenesis of Peripatus balfouri up to the Formation of the Spermatid, Zool. Jahrb., vol. 14.
15. Montgomery, T. H., jr., 1901. A Study of the Germ Cells of Metazoa, Trans. Amer. Phil. Soc., vol. 20.
16. McClung, C. E., 1899. A Peculiar Nuclear Element in the Male Reproductive Cells of Insects, Zool. Bull., vol. 2.
17. McClung, C. E., 1900. The Spermatocyte Divisions of the Acrididæ, Kans. Univ. Quart., vol. 9, No. 1.
18. McClung, C. E., 1901. Notes on the Accessory Chromosome, Anat. Anz., Bd. 20, Nos. 8, 9.
19. McClung, C. E., 1902. The Accessory Chromosome—Sex Determinant? Biol. Bull., vol. 3, Nos. 1, 2.
20. Moore, J. E. S., 1895. On the Structural Changes in the Reproductive Cells during the Spermatogenesis of Elasmobranchs, Quart. J. Micr. Sc., vol. 38.