437 



Protozoa 



95929 Metealf, Majnard M. Hl. 7 Opalina î 16.9 : 78 



1911. Notes upon Opalina. Zooi. Anz. Bd. 14 p. 533—541, 21 figg. [Chro- 

 mosomes in 0. 0. antUliensis n. sp.] (729.2) 



30 Sliuîiiway, l>'aldo. 31.7 Paramaechim : 11 



1914. Effect of thyroid on division rate of Faraniaecium. Journ. exper. 

 Zoöl. Yol. 17 p. 297—814, 3 ngg. [Great increase, except near cloae of 

 cycle. Ingestion of particles ot thyroid,] 11. 044, .32,. 39 



31 MetalnikoY, S. ' 31.7 Paramaecium : 11.044 



1918. Sur la faculté des infusoires d'apprendre à choisir la nourriture. 

 (Réun. biol. St.-Pétersbourg.) C. R. Sac. Biol. Paris T. 74 p. 701—703. 

 [Apprennent à distinguer et à rejeter des substances sans valeur nutri- 

 tive qu'ils avaient englobées au commencement de l'épreuve.] -- Comment 

 les infusoires se comportent vis-à-vis des mélanges de diverses matières 

 colorantes, p. 704—705. 



32 Cliurchman, John W., and D. G, Russell. 31.7 Paramaecium t 11.044 



1914. The elïect of gentian violet on protozoa and on growing adult tissue. 

 Proc. Soc. exper. Biol. Med. Vol. 11 p. 120—124. [True intra-vitai 

 staining of Faramcecium. Cell division not observed but found in stained 

 tissue cultures. Nucleus believed also to be stained. Bacteria killed in 

 similar concentrations.] 



33 Zagorowsky, P. 31.7 Paramaecium : 11.044 



1914. Die Thermotaxis der Paramäcien. Zeitschr. Bioi. Bd. 65 p. 1 — 

 12, 2 Tal, 1 fig. [Schvç-elle der thermischen Erregbarkeit 2S^, Maximum 

 der aktiven Bewegbarkeit 55°, Minimum — 15^ Bis 32° positiv, von 33*^ 

 ab negativ thermotaxisch. Schwimmgeschwindigkeit nimmt mit Tempe« 

 ratursteigerung zu.] 



3i Calkiiis, Gary K., and Louise H. Gregory. 31.7 Paramecium : 11.5 



1913. Variations in the progeny of a single exconjugant of Paramecium 

 caudatum. Journ. exper. Zool. Vol. 15 p. 467—525, 8 figg. [Variations 

 in size, in conjugatmg power among pure Unes. Some lines lack appa- 

 rently potential of conjugating power. Natural death. Gonjugation not 

 necessary for originating variations. Increase in vitality through conju- 

 gation.] 



95935 AVoodruff, Lorande Loss, and Rhoda Erdmann. 31.7 Paramaecium : 11.6 



1914. A normal periodic reorganization process without cell fusion in 

 Paramaecium. Journ. exper. Zoöl, Vol. 17 p. 425—518, 4 pis., 22 figg. 

 [Significance of endomixis (internal regulatory phenomenon, self suffi- 

 cient for indefinite life of race) and conjugatron.] II.625.66 



36 "tVoodrulf, Lorande Loss, and Rh. Erdmann. 31.7 Paramaecium : 11.6 



1914. Complète periodic nuclear reorganization withoat cell fusion in a 

 pedigreed race of Paramaecium. Proc. Soc. exper. Biol. Med. Vol. 11 

 p. 73—74. [4,250 générations without fusion. Rhythmus in division rate 

 attendant upon disintregation of old macronueleus, multiple division of 

 micronuclei and formation of new macronuclear Anlagen simulating con- 

 jugation.] 11.64,.66 



37 Calkins, Gary îs\ 31.7 Paramaecium : 11.6 



1915. Cycles and Rhythms and the Problem of „Immortality" in Pa- 

 ramecium. Amer. Natural. Vol. 49 p. 65 — 76. 



11.62,.64,.66 



3ö Klitzke, Max. 31.7 Paramaecium : 11.66 



1914. Ueber Wiederconjuganten bei Pai-amaecium caudatum. Arch. Pro- 

 listenkde. Bd. 33 p. 1—20, 2 Taf., 3 figg. [Mehrere Macronuclei. Auf- 

 treten geschlechtlicher VorgäDge scheint durch Zusammenwirken einer 

 mit der Zahl der vegetativen Teilungen wachsenden inneren Geschlechts- 

 potenz mit hemmenden oder fördernden äusseren Faktoren.] 



39 >yoodruff, Lorande Loss. 31.7 Paramaecium : 11.66 



1914, Further light on the conjugation of Paramaecium. Proc. Soc. ex- 

 per, Biol, Med, Vol, 11 p. 64, [No évidence of existence of non-conju- 

 gating races.] 



95910 Woodruff, Lorande Loss, 31,7 Paramaecium : 11.66 



1914, fco-called conjugating and non-conjugating races of Paramaecium: 



