374 RUTH J. STOCKING. 



3. The loops formed by these bivalent chromosomes are not 

 homogeneous, but are partly linin. 



4. No diffuse "resting stage" was found, the chromatin being 

 in the form of compact, definite bodies throughout the whole 

 observed process. 



5. No diffuse spireme was found. 



LITERATURE. 

 Stevens, N. M. 



'050 Studies in Spermatogenesis, Part I, with Especial Reference to the " Acces- 

 sory Chromosome." Carnegie Inst. of Wash., Pub. No. 36, Part I. 

 '06 Ibid., Part 2. 

 '08 The Chromosomes in Diabrotica vittata, Diabrotica soror, and Diabrotica 



12-pnnctata. J. of Exper. Zool., Vol. 5, No. 4. 

 Wilson, E. B. 



'12 Studies on Chromosomes, VIII. J. of Exper. Zool., Vol. 13, No. 3, Oct., 

 1912. 



