512 
A. Schellenberg 
Goldschmidt, R. 1910. Kleine Beobachtungen und Ideen zur Zellenlehre. 1. Ac- 
cessorisches Chromosom und Geschlechtsbestimmung. Arch. f. Zellforsch. 
Bd. YI. 
Granata, L. 1910. Le cinesi spermatogenetiche di Pamphagus marmoratus Burm. 
Arch. f. Zellforsch. Bd. V. 
Gross, J. 1904. Die Spermatogenese von Syromastes marginatus. Zool. Jahrb, Anat. 
Bd. XX. 
1906. Die Spermatogenese von Pvrrhocoris apterus L. Ebd. Bd. XXIII. 
1912. Heterochromosomen und Gesehlechtsbestimmung bei Insekten. Ebd. 
Allg. Zool. u. Physiol. Bd. XXXII. 
Gltherz, S. 1907. Zur Kenntnis der Heterochromosomen. Arch. f. mikr. Anat. 
Bd. LXIX. 
Mc. Clung, C. E. 1900. The spermatocyte divisions of the Acrididae. Kans. Univ. 
Quart. Yol. IX. 
1902. The spermatocyte divisions of the Locustidae. Kans. Univ. Sc. Bull. Vol. I. 
1905. The chromosome complex of orthopteran spermatocytes. Biol. Bull. 
Vol. IX. 
1908. The spermatogenesis of Xiphidium fasciatum. Kans. Univ. Sc. Bull. 
Vol. IV. 
Moxtgomery, T. H. jr. 1898. The spermatogenesis in Pentatoma up to the formation 
of the spermatid. Zool. Jahrb., Anat. Bd. XII. 
1901. A study of the chromosomes of the germ cells of Metazoa. Trans. Amer. 
phil. Soc. Vol. XX. 
1905. The spermatogenesis of Svrbula und Lycosa xvith general considerations 
upon chromosomereduction and the heterochromosomes. Proc. Acad. nat. 
Sc. Philad. Vol. LVII. 
1910. Are particidar chromosomes sex determinants? Biol. Bull. Vol. XIX. 
Morgan, T. H. 1909. A biological and cytological study of sex determination in Phyl- 
loxerans and Aphids. Journ. exper. Zool. Vol. VII. 
Morril, C. V. 1910. The chromosomes in the oogenesis, fertilization and cleavage of 
Coreid Hemiptera. Biol. Bull. Vol. XIX. 
Mulsow, C. 1912. Der Chromosomencyclus bei Ancvraeanthus cvstidicola Rud. Arch. 
f. Zellforsch. Bd. IX. 
Nowlin, W. N. 1908. The chromosome complex of Melanoplus bivittatus Say. Kans. 
Univ. Sc. Bull. Vol. IV. 
Otte, H. 1907. Samenreifung und Samenbildung bei Locusta viridissima. Zool. Jahrb., 
Anat. Bd. XXIV. 
Payne, F. 1909. Some new types of chromosome distribution and their relation to 
sex. Biol. Bull. Vol. XVI. 
Pinney, E. 1908. Organization of the chromosomes in Phrynotettix magnus. Kans. 
Univ. Sc. Bull. Vol. IV. 
Robertson, W. R. B. 1908. The chromosome complex of Svrbula admirabilis. Ebd. 
Vol. IV. 
Schleip, W. 1911. Über die Chromatinverhältnisse bei Angiostomum (Rhabdonema) 
nigrovenosum. Ber. naturf. Ges. Freiburg i. B. Bd. XIX. 
1912. Geschlechtsbestimmende Ursachen im Tierreich. Ergehn, u. Fortschr. d. 
Zool. Bd. III. 
