Protozoa. 



320 



2362* Metealf, Maynard M. 31.7 Opalina: 11.66. 



1907. Studies on Opalina. (Preliminary Notice.) Zool. Anz. Bd. 32. 



p. 110-118, 7 figg. 

 63*Metcalf, Maynard M. 31.70palina: 16.9:78. 



1907. The Excretory Organs of Opalina. Part I. Arch. Protistenkunde 



Bd. 10. p. 183—187, 365—374, 1 pl., 15 figg. 

 64* Fauré-Fremiet, Emmanuel. 31.7 Ophrydium. 



1906. Sur VOphnjdium versatile. C. R. Soc. Biol. Paris T. 61, p. 46 



—48. 



65*Topsent, E. 31.7 Ophrydium (44.32). 



1906. Une station à.' Ophrydium versatile dans la Marne. Bull. Mus. Hist. 

 nat. Paris 1906. p. 576. 



66* Cépède, Casimir. 31.7 Orchitophrya: 11.044. 



1907. L'adaptation au milieu marin à.' Orchitophrya stellarum Cépède, 

 Infusoire astome parasite des testicules des Etoiles de mer. C. R. Acad. 

 Se. Paris T. 145. p. 1435 — 1437. [Probablement phénomène normal. 

 Contamination des Etoiles de mer donc par processus d'infection directe?] 



67* Cépède, Casimir. 31.7 0rchitophrya{44.27.) 



1907. La castration parasitaire des Etoiles de mer mâles par un nouvel 

 Infusoire astome: Orchitophrya stellarum n. g., n. sp. C. R. Acad. Se. 

 Paris T. 145. p. 1305—1306. [Infestant testicules d'Asteracanthion 

 ruhens.] 



2368* Lister, J. J. 31.7 Paramaecium. 



1906. Biometry and Biology: A Reply to Prof. Pearson. Nature Vol. 74. 

 p. 584—585. — by Karl Pear s o n p. 608—610, 636. 

 69*Calkins, Gary N. 31.7 Paramaecium: 11. 



1906. Morphology a Necessary Factor in the Study of Pathogenic Pro- 

 tozoa. (Med. Ass. greater City New York.) Med. Ree. New York Vol. 70. 

 p. 1013. [Life cycles in Paramaecium. caudatum.'. 



70*Baneroft, Frank W. 31.7Paramaeeium: 11.044. 



1906. On the Influence of the Relative Concentration of Calcium Ions on 

 the Reversai of the Polar Effects of the Galvanic Current in Paramecium. 

 Journ. Physiol. London Vol. 34. p. 444 — 463, 3 figg. [Swimming for- 

 wards towards anode in weak solutions of many salts (cilia at their ano- 

 dal ends beat more strongly forw: now galvan. stimulation reversed : it 

 acts at the anode). Absence of galvanotrop. caused by salts tending to di- 

 minish conc. of Ca ions. CaCU prevents both anodal galvanotrop. and 

 absence of galvanotrop. Character of galvanotrop. dépends upon rel. 

 amounts of free Ca ions. Loeb's theory.] 



71* Bancroft, Frank W. 31.7 Paramaecium : 11.044. 



1906. The Control of Galvanotropism in Paramecium by Chemical Sub- 

 stances. Univ. California Publ. Physiol. Vol. 3. p. 21 — 31. [Swimming 

 forwards towards Anode in some sait solutions; in others, or stronger 

 concentrations of the same salts, total absence of Galvanotropism. Oblique 

 Galvanotropism. (Author) see also Journ. Physiol. London Vol. 34. p. 444.] 



5372* Calkins, Gary N., and Sara White Cuil. 31.7 Paramaecium: 11.66. 



1907. The Conjugation of Paramaecium aurelia (caudatum). Arch. Pro- 

 tistenkunde Bd. 10. p. 375—415, 7 Taf. 



10. XL 1907. 



