250 SEX IN MICROORGANISMS 



. 1871b. Ueber Schwarmerbildung bei Radiolarien. Arch, mikroskop. 



Anat., 7, 372-381. 



Cleveland, L. R. 1947a. Sex induced in tlie Protozoa of Cryptocercns by molt- 

 ing. Scie?2ce, 105, 16-17. 



. 1947b. The origin and evolution of meiosis. Science, 105, 287-289. 



. 1949. Hormone-induced sexual cycles of flagellates. I. Gametogenesis, 



fertilization and meiosis in Trichoyiynipha. J. MorphoL, 85, 197-295. 



. 1950a. Hormone-induced sexual cycles of flagellates. II. Gametogenesis, 



fertilization and one-division meiosis in Oxyinonas. J. MorphoL, 86, 185- 

 214. 



. 1950b. Hormone-induced sexual cycles of flagellates. III. Gametogen- 

 esis, fertilization and one-division meiosis in Saccinobaculus. J. MorphoL, 

 86, 215-228. 



. 1950c. Hormone-induced sexual cycles of flagellates. IV. Meiosis after 



syngamy and before nuclear fusion in Notila. J. MorphoL, 87, 317-348. 



. 1950d. Hormone-induced sexual cycles of flagellates. V. Fertilization 



in Euco?nonympha. J. MorphoL, 87, 349-368. 



. 1951a. Hormone-induced sexual cycles of flagellates. VI. Gametogen- 

 esis, fertilization, meiosis, oocysts, and gametocysts in Leptospiroiiy//ipha. 

 J. MorphoL, 88, 194-244. 



. 1951b. Hormone-induced sexual cycles of flagellates. VII. One-division 



meiosis and autogamy without cell division in Urinyi)ipha. J. MorphoL, 

 88, 385-440. 

 -. 1952. Hormone-induced sexual cycles of flagellates. VIII. Meiosis in 



Rhynchony7npha in one cytoplasmic and two nuclear divisions followed 

 by autogamy. /. MorphoL, 91, 269-323. 



Cleveland, L. R., S. R. Hall, E. P. Sanders, and J. Collier. 1934. The wood- 

 feeding roach, Cryptocercns, its Protozoa, and the symbiosis between 

 Protozoa and roach. Mem. Am. Acad. Arts Sci., 17, 185-342. 



Collin, B. 1909. La conjugaison d'Afwplophrya branchiaruDi (Stein) {A. cir- 

 culans Balbiani). Arch. zooL exptl. et gen., [5] 1, 345-388. 



. 1912. Etude monographique sur les Acinetiens. Arch. zooL exptL et 



gen., 51, 1-457. 



Colwin, L. H. 1944. Binary fission and conjugation in Urceolaria synaptae (?) 

 Type II (Protozoa, Ciliata) with special reference to the nuclear phe- 

 nomena. /. MorphoL, 75, 203-249. 



Corliss, J. O. 1952a. Nuclear reorganization (autogamy) in a species of Tetra- 

 hymena. Proc. Soc. ProtozooL, 3, 4. 



. 1952b. Le cycle autogamique de Tetrahymena rostrata. Coiupt. re?id., 



235, 399-402. 



Culwick, A. T., H. Fairbairn, and R. E. Culwick. 1951. The genetic relation- 

 ship of the polymorphic trypanosomes and its practical implications. Ann. 

 Trop. Med. ParasitoL, 45, 11-29. 



Cunningham, J. T. 1907. On Kalpidorhynchus areuicolae, a new gregarine 

 parasite in Arenicola ecaudata. Arch. Protiste?ik., 10, 199-213. 



Da Cunha, A. A'l., and J. Muniz. 1930. On the endomixis phenomenon in 



