339 Protozoa. 



16655 Metcalf, Maynard M. 31.7 Opalina : 14 



1JM)8. Opalina. Its Anatomy and Reproduction, with a Description of 

 Infection Experiments and a Chronological Review of the Literature. 

 Arch. Protistenk. Bd. 13 p. lOo— 378, 14 Taf., 17 figg. ll.(;4,.(i(i 



56 Dobell, C. Clifford. 31.7 Opalina : :6.9 : 78 



1907. Physiological Degeneration in Opalina. Quart. Jouru. micr. Sc. 

 Vol. 51 p. 633—645, 2 figg. [Change of shape. Loss of cilia („atrichous" 

 forms). Nuclear changes. Death. (The determining factor in degene- 

 ration is starvation).] 



57 Kimstler, J., et Ch. Gineste. 31.7 Opalina : 18.11 



1906. Les spherules chromophiles chez les protozoaires. C. R. Ass. 

 Aiiat. T. 8 p. 3 — 5, 11 figg. [Element fondamental du protoplasme.] 



58 Loewenthal, Waldemar. 31.7 Opalina : 18.13 



1008. Notizen iiber Opalina ranarum nebst Bemerkungen iiber die Unter- 

 scheidung von Erythro- und Cyanochromatin. Arch. Protistenli. Bd. 13 

 p. 115-120. 1 fig. 



59 Schonteden, H. 31.7 Opalinidae (28) 



1907. Les Infusoires Aspirotriches d'eau douce. Ann. Biol, lacustre T. 

 2 p. 171—180. 



60 Faiire-rreuiiet, Emmanuel. 31.7 Opercularia : 14 



1907. L'organisation de l\^Opercularia notoneciae"' dans ses rapports avec 

 la cytologie generale. Note preliminaire. C. R. Ass. Anat. T. 9 p. Ill 

 -116. 



61 Cepede, C. 31.7 Orchidophrya : 16.9 : 39.3 



1908. Sur un nouvel Infusoire Astome, parasite des testicules des Etoiles 

 de mer. — Considerations generales sur les Astomata. C. R. Ass. fran^*. 

 Av. Sc. Sess. 36 Pt. 1 p. 258. [Orchidophrya stellarwu.'] 



16662 AYaguer, George. 31.7 Oxytriclia : 11.044 



1908. A Note on the Chemotaxis of Oxytricha aeruginosa. Biol. Bull. 

 Vol. 14 p. 290-296. 



63 Dant)ar, Frances J. 31.7 Paramaecium : 07 



1904. Methods Used in Cultivating Pure Strains of Paramaecium. 6th 

 Rep. Michigan Acad. Sc. p. 186—187. 



64 Bardeen, Charles R. 31.7 Paramaecium : 11.044 



1907. The Action of the X-Rays on Paramecia. (Proc. Ass. Amer. Anat.) 

 Amer. Journ. Anat. Yol. 6 Anat. Rec. p. 59 — 60. [Great resistance to 

 Roentgen rays.] 



65 Hausmann, W., und W. Kolmer. 31.7 Paramaecium : 11.044 



1907. tjber die Einwirkung kolloidaler Gifte auf Paramacien, Biochem. 

 Zeitschr. Bd. 3 p. 503—607. [Kolloidaler Charakter bewirkt nicht G-ift- 

 wkkung. Einwirkung der Temperatur.] 



66 Daniel, J. Frank. 31.7 Paramaecium : 11.044 



1908. The Adjustment of Paramecium to Distilled Water and its Bearing 

 on the Problem of the Necessary Inorganic Salt Content. Amer. Journ. 

 Physiol. Vol. 23 p. 48—63. [Death in distilled water is caused by sudden 

 change in media. Organisms transfen-ed gradually live for days without 

 food in purer water than it took to kill control animals suddenly sub- 

 jected to it.] 



67 Hausmann, W[alther], und W. Kolmer. 31.7 Paramaecium : 11.044 



1908. tJber die sensibilisierende Wirkung pflanzlicher und tierischer 

 Farbstoffe auf Paramaecien. Biochem. Zeitschr. Bd. 15 p. 12—18. 



[Photodynamische Wirkung.] 



16668 McCleudon, J. F. 31.7 Paramaecium : 11.044 



15)08. The Effects of Prolonged Centrifugal Force on Paramaecium. (Proc. 

 Amer. physiol. Soc.) Amer. Journ. Physiol. Vol. 21 p. XIV. 



15. I. 1909. 



