382 ANIMAL AGGREGATIONS 



Grasse, p. 1923. Sur la phototropisme des quelques criquets. Compt. rend. 



Soc. de hiol. 89:898-99. 

 Grassi, B., and Anna Foa. 1907. Ricerche sulle filossere, etc. esequite nel R. 



osservatorio antifilosserico di Fauglia, etc. Rend. deW Accad. d. Lincei, 



1 Sett. 

 Grassi, B., and A. Sandias. 1897-98. The constitution and development of 



the society of termites. Observation on their habits with appendices on the 



parasite Protozoa of the Termitidae and on the Emhiidae. Qiiar. Jour. Micr. 



Sci. 39:245-322. 

 Grave, B. H. 1922. An analysis of the spawning habits and spawning stimuli 



of Chaetoplcnra apiculata Say. Biol. Bull. 42:234-56. 

 . 1927. An analysis of the spawning habits and spawning stimuli of 



Cumingia tellinoides. Ibid. 52:418-36. 

 . 1928. Vitality of the gametes of Cumingia tellinoides. Ibid. 54:351- 



62. 

 Grave, B. H., and R. C. Downing. 1928. The longevity and swimming ability 



of spermatozoa. Jour. Exp. Zool. 51:383-88. 

 Gray, James. 1913. The electrical conductivity of fertilized and unfertilized 



eggs. Jour. Mar. Biol. Assoc. N.S. 10:50-59. 

 . 19130. The effects of hypertonic solutions upon the fertilized eggs of 



Echinus {E. esculentus and E. acutus). Quar. Jour. Micr. Sci. 58:447-81. 

 . 191 5. Note on the relation of spermatozoa to electrolytes and its 



bearing on the problem of fertilization. Ibid. 61:119-26. 

 — — . 1916. The electrical conductivity of echinoderm eggs and its bearing 



on the problems of fertilization and artificial parthenogenesis. Phil. Trans. 

 Roy. Soc. London B. 207:481-529. 

 . 1920. The relation of spermatozoa to certain electrolytes II. Proc. 



Roy. Soc. London B. 91:147-57. 

 . 1922. A critical study of the facts of artificial fertilization and normal 



fertilization. Quar. Jour. Micr. Sci. 66:419-37. 

 . 1928. Effect of dilution on the activity of spermatozoa. Brit. Jour. 



Exp. Biol. 5:337-45- 



1928a. Senescence of spermatozoa. Ibid. 5:345-61. 



Greenleaf, W. E. 1924. The influence of volume of culture media and cell 

 proximity on the rate of reproduction of Protozoa. Proc. Soc. Exp. Biol, 

 and Med. 21:405-6. 



. 1926. The influence of volume of culture medium and cell proximity 



on the rate of reproduction of Infusoria. Jour. Exp. Zool. 46:143-69. 



Gregory, L. H. 191 7. Effect of starvation on wing development of Micro- 

 siphon destructa. Biol. Bull. 33:296-303. 



Grosvenor, C. H., and G. Smith. 1913. The life cycle of Moina rcctirostris. 

 Quart. Jour. Micr. Sci. 58:511-22. 



