=1=. Atkinson, Geo. F., 1899. Studies on Reduction in Plants, Bot. Gaz.,
vol. 28.
=2=. Baumgartner, W. J., 1902. The Spermatid Transformations of _Gryllus
assimilis_, etc., Kans. Univ. Sci. Bull., vol. 1, No. 1.
=3=. Brauer, A., 1893. Zur Kenntniss der Spermatogenese von _Ascaris
megalocephala_, Arch. mikr. Anat., vol 42.
=4=. Carnoy, 1895. La Cytodiérese chez les Arthropodes, La Cellule, vol.
1.
=5=. Cholodkovsky, N., 1894. Zur Frage über die Anfangsstadien der
Spermatogenese bei den Insecten, Zool. Anz., vol. 17.
=6=. Griffin, B. B., 1899. Studies on Maturation, Fertilization and
Cleavage of _Thalassema_ and _Zirphæa_, Jr. Morph., vol. 15.
=7=. Häcker, Valetin, 1897. Ueber weitere Uebereinstimmungen zwischen
den Fortpflianzungsvorgängen der Tiere und Pflanzen, Biol. Cent., vol.
17.
=8=. Henking, H., 1890. Untersuchungen über die ersten
Entwicklungsvorgänge in den Eiern der Insecten. 2. Ueber Spermatogenese
und deren Beziehung zur Eientwicklung bei _Pyrrhocoris apterus_ M., Z.
wiss. Zool., vol. 51.
=9=. Henking, H., 1892, idem. 3. Specielles und Allgemeines, _ibid._,
vol. 54.
=10=. Ischikawa, 1891. Studies of Reproductive Elements.
Spermatogenesis, Ovogenesis and Fertilization in _Diaptomus_ sp., J.
Coll. Sc. Imp. Univ. Japan, vol. 5.
=11=. Kingsbury, B. F., 1902. The Spermatogenesis of _Desmognathus
fusca_, Am. Jour. Anat., vol. 1, No. 2.
=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.
=13=_a_. 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.
=21=. Paulmier, F. C., 1898. Chromatin Reduction in the Hemiptera, Anat.
Anz., vol. 14.
=22=. Paulmier, F. C., 1899. The Spermatogenesis of _Anasa tristis_, Jr.
Morph., vol. 15.
=23=. Platner, G., 1886. Die Karyokinese bei den Lepidopteran als
Grundlage für eine Theorie der Zelltheilung, Internat. Monatsschr. Anat.
Histol., vol. 3.
=24=. Rath, O. vom, 1891. Ueber die Reduction der Chromatischen Elemente
in der Samenbildung von _Gryllotalpa_, Ber. Naturf. Ges. Freiburg, vol.
6.
=25=. Rath, O. vom, 1892. Zur Kenntniss der Spermatogenese von
_Gryllotalpa vulgaris_ Latr., Arch. Mikr. Anat., vol. 40.
=26=. Rath, O. vom, 1895. Neue Beiträge zur Frage der Chromatinreduction
in der Samen und Eireife, _ibid._, vol. 4.
=27=. Sabatier, A., 1890. De la Spermatogénese chez les Locustides,
Comptes Rend., vol. 111.
=28=. Sutton, W. S., 1900. The Spermatogonial Divisions of _Brachystola
magna_, Kans. Univ. Quart., vol. 9, No. 2.
=29=. Toyama, K., 1894. On the Spermatogenesis of the Silkworm, Bull.
Coll. Agric. Imp. Univ. Japan, vol. 2.
=30=. V. la Valette St. George, 1897. Zur Samen-und Eibildung beim
Seidenspinner (_Bombyx mori_), Arch. mikr. Anat., vol. 50.
=31=. Wagner, J., 1896. Beiträge zur Kenntniss der Spermatogenese bei
den Spinnen, Arb. Nat. Ges. St. Petersburg, vol. 26.
=32=. Wilcox, E. V., 1895. Spermatogenesis of _Caloptenus femur-rubrum_
and _Cicada tibicen_, Bull. Mus. Comp. Zool. Harvard Univ., vol. 27.
=33=. Wilcox, E. V., 1896. Further Studies on the Spermatogenesis of
_Caloptenus femur-rubrum_, _ibid._, vol. 29.
=34=. Wilcox, E. V., 1897. Chromatic Tetrads, Anat. Anz., vol. 14.
=35=. Wilcox, E. V., 1901. Longitudinal and Transverse Divisions of
Chromosomes, Anat. Anz., Bd. 19, No. 13.
=36=. Wilson, E. B., 1900. The Cell in Development and Inheritance. New
York; 2d ed.
=37=. de Sinéty, R., 1901. Recherches sur la Biologie et l’Anatomie des
Phasmes, La Cellule, Tome 19, 1er fascicule.