570 Theophilus s. Painter, 



Bil)liograpliy. 



Beret, E. H., 1906, The "Accessory Chromosomes" in Epeira, in: Biol. 

 Bull., A'ol. 11, No. 4. 



BÖSENBEEG, H., 1905, Beiträge zur Kenntnis der Spermatogenese bei 

 den Arachnoiden, in: Zool. Jahrb., Vol. 21, Anat. 



BOVEEI, Th., 1890, Zellenstudien III, in: Jena. Ztschr. Naturw., Vol. 24. 



Beowne, E. N., 1910, The relation between chromosome number and 

 species in Notonectus, in: Biol. Bull., Vol. 20. 



Caenoy, J. B., 1885, La cytodiérèse chez les Arthropodes, in: Cellule. 



Edwards, C. L., 1910, The idiochroraosomes in Ascaris megalocephala 

 and Ascaris lumbricoides, in: Arch. Zellforsch., Vol. 5. 



Emeeton, J. H., 1902, Common Spiders. 



Gross, J., 1904, Die Spermatogenese von Syromastes marginatus, in: 

 Zool. Jahrb., Vol. 20, Anat. 



AtONTGOMEET, T. H,, 1905, The spermatogenesis of Syrbula and Lycosa, 

 with general considerations upon chromosome reduction and hétéro- 

 chromosomes, in: Proc. Acad. nat. Sc. Philadelphia, Vol. 57. 



MOEGAN, T. H., 1909, A biological and cytological study of sex deter- 

 mination in Phylloxerans and Aphids, in : Journ. exper. Zool., Vol. 7. 



Payne, F., 1909, Some new types of chromosome distribution and their 

 relation to sex, in: Biol. Bull., Vol. 16. 



— , 1912, A further study of the chromosomes of Reduviidae, in: Journ. 

 Morphol., Vol. 23. 



Peteunkevitch, a, 1911, Sense of sight, courtship and mating in 

 Dugesiella hentzi, in: Zool., .Jahrb., Vol. 31, Syst. 



POCOCK, R. I., 1910, A monograph of the Carboniferous Arachnida of 

 Great Britain. 



Stevens, N. 1^1., 1912, Supernumerary chromosomes and synapsis in 

 Ceutophilus, in: Biol, Bull., Vol. 22. 



