REPRODUCTION 173 



1917 On Oxnerclla maritima, nov. gen., nov. spec, a new 



heliozoan, and its method of division, with some remarks on the 

 centroplast of the Heljozoa. Ibid., Vol. 62. 



1925 The Hfe-history and chromosome cycle of Aggregata 



eberthi. Parasitology, Vol. 17. 



GiESE, A. C. 1939 Studies on conjugation in Paramecium multi- 

 micronucleatum. Amer. Nat., Vol. 73. 



Oilman, L. C. 1941 Mating types in diverse races of Paramecium 

 caudatum. Biol. Bull., Vol. 80. 



Hall, R. P. 1923 Morphology and binary fission of Menoidium 

 incurvum. Univ. California Publ. Zool., Vol. 20. 



Hartmann, M. 1917 Ueber die dauernde rein agame Zuchtung von 

 Eudorina elegans and ihre Bedeutung fiir das Befruchtungs- und 

 Todproblem. Ber. preuss. Akad. Wiss., Phys.-Math. Klasse, pp. 

 760-776. 



Hauschka, T. S. 1943 Life history and chromosome cycle of the 

 coccidian, Adelina deronis. Jour. Morph., Vol. 73. 



IvANic, M. 1938 Ueber die mit der Chromosomenbildung verbun- 

 dene promitotische Orosskernteilung bei den Vermehrungsruhe 

 Stadien von Chilodon uncinatus. Arch. f. Protistenk., Vol. 91. 



Jameson, A. P. 1920 The chromosome cycle of gregarines with spe- 

 cial reference to Diplocystis schneideri. Quart. Jour. Micr. Sci., 

 Vol. 64. 



Jennings, H. S. 1929 Oenetics of the Protozoa. Bibliogr. Oen., 

 Vol. 5. 



1938 Sex reaction types and their inheritance in Parame- 

 cium hursaria. I. II. Clones collected from natural habitats. Proc. 

 Nat. Acad. Sci., Vol. 24. 



1939 Oenetics of Paramecium hursaria. I. Oenetics, Vol. 24. 



1941 Oenetics of Paramecium hursaria. II. Proc. Amer. 



Phil. Soc, Vol. 85. 



■ — 1942 Genetics of Parameciumhursaria. III. Oenetics, Vol. 27. 



1942 Senescence and death in Protozoa and invertebrates. 



In E. V. Cowdry: Problems of ageing. Second edition. Balti- 

 more. 



, D. Raffel, R. S. Lynch and T. M. Sonneborn 1932 The 



diverse biotypes produced by conjugation within a clone of 

 Paramecium aurelia. Jour. Exp. Zool., Vol. 62. 



Kidder, O. W. 1933 Studies on Conchophthirus mytili de Morgan. 

 I. Arch. f. Protistenk., Vol. 79. 



1938 Nuclear reorganization without cell division in Para- 



clevelandia simplex, an endocommensal ciliate of the wood-feed- 

 ing roach, Panesthia. Ibid., Vol. 91. 



and C. L. Claff 1938 Cytological investigations of Col- 



poda cucullus. Biol. Bull., Vol. 74. 



and W. F. Diller 1934 Observations on the binaiy fission 



of four species of common free-living ciliates, with special refer- 

 ence to the macronuclear chromatin. Ibid., Vol. 67. 



and F. M. Summers 1935 Taxonomic and cytological stud- 

 ies on the ciliates associated with the amphipod family Orchesti- 

 idae from the Woods Hole district. Ibid., Vol. 68. 



