726 C. E. McCLUNG 



Erlanger, R. v. 1897 Spermatogenetische Fragen. III. Zool. Zentralblatt, 



Jahrgang, Bd. 4. 

 Farmer, J. B., and Moore, J. E. S. 1905 On the maiotic phase (reduction 



divisions) in animals and plants. Quart. Jqur. Micr. Sci., vol. 48. 

 Gerard, Pol 1909 Recherches sur la reduction Karyogamique dans la sperma- 



togenese de Stenobothrus biguttulus (L). Bull. Societe Roy. Sciences 



med. nat. de Bruxelles, no. 1. 



1909 Recherches sur la spermatogenese chez Stenobothrus biguttulus 



(Linn). Archives de Biologie, tonie 24. 

 GiGLio-Tos, Ermanno 1908 I mitochondri nelle cellule seminali maschili di 



Pamphagus marmoratus. Biologica, vol. 2, no. 4. 

 GiLSON, G. 1884 Etude comparee de la spermatogenese chez les arthropods. 



La Cellule, tome 1. 

 GuTHERZ, S. 1907 Zur Kenntnis der Heterochromosomen. Archiv fiir mikros. 



Anat., Bd. 69. 



1908 Ueber Beziehungen zwischen Chromosomenzahl und Geschlecht. 

 Centralblatt flir Physiol., Bd. 22. Nr. 2. 



1909 a Weiteres zur Geschichte des Heterochromosomen von Gryllus 

 domesticus. Sitzungs. der Gesell. Naturf. Freunde, no. 7. 



1909 b Wird die Annahme einer Eeziehung zwischen Heterochromosomen 

 und Geschlechtsbestimmung durch das studien der Gryllus-Oogenese 

 widerlegt? Sitzungs. der Gesell. Naturf. Freunde, Jahrgang, no. 9. 



1911 Ueber den gegenwartigen Stand der Heterochromosomen-Forsch- 

 ung, nebst Bemerkungen zum Problem der Geschlechtsdifferenzierung. 

 Sitzungs. der Gesells. Naturf. Freunde, Berlin. 



Granata, Leopoldo 1910 La cinesi spermatogenetische di Pamphagus mar- 

 moratus (Burm). Archiv flir Zellforschung, Bd. 5, Hft. 2. 



Hartman, Frank 1913 a Variations in the size of chromosomes. Biol. Bull. 

 vol. 24, no. 4. 

 1913 b Giant germ cells in the grasshopper. Biol. Bull., vol. 24, no. 4. 



Jordan, H. C. 1908 a The accessory chromosome in Aplopus mayeri. Anat. 

 Anz., Bd. 32, no. 11-12. 



1908 b The spermatogenesis of Aplopus mayeri. Pub. no. 102, Carnegie 

 Inst. 



Meek, C. F. U. 1911 The spermatogenesis of Stenobothrus viridulus, with 

 special reference to the heterotropic chromosome as a sex determinant 

 in grasshoppers. Linnean Society's Jour. Zool., vol. 32, no. 208. 



1912 a A metrical analysis of chromosome complexes, showing correla- 

 tion of evolutionary development and chromatin thread-width through- 

 out the animal kingdom. Philosoph. Transactions Roy. Soc. of Lon- 

 don, Series B, vol. 203. 



1912 b The correlation of somatic characters and chromatin rod- 

 lengths, being a further study of chromosome divisions. Linnean 

 Society's Jour. Zool., vol. 32. 



1913 The metaphase spindle in the spermatogenetic mitoses of For- 

 ficula auriculana. Quart. Jour. Micr. Sci., vol. 59, Part 2. 



1914 a The possible connection between spindle length and cell vol- 

 ume. Proc. Zool. Soc. of London, March. 



