x Contents 



PAGE 



The Culture of Colpoda cucullus II0 



By H. Albert Barker and C. V. Taylor, Stanford University 



Some Methods for the Pure Culture of Protozoa . . . .112 



By William Trager, Rockefeller Institute for Medical Research 



Thyroid Cultures of Paramecia (Reprinted) 119 



By William L. Straus, Jr. 



A Combined Culture Method and Indicator for Paramecium 



(Reprinted) "9 



By Robert T. Hance, University of Pittsburgh 



Paramecium I2 ° 



By William LeRay and Norma Ford, University of Toronto 



A Culture Medium for Paramecium (Reprinted) . . . .120 

 By Lauren E. Rosenberg, University of California 



Cultivation of Paramecium aurelia and P. multimicronucleatum . 121 

 By T. M. Sonneborn, Johns Hopkins University 



Paramecium multimicronucleatum: Mass-Culturing, Maintain- 

 ing and Rehabilitating Mass-Cultures, and Securing Con- 

 centrations I22 



By Edgar P. Jones, University of Akron and University of Pittsburgh 



Culturing Paramecium caudatum in Oat Straw Infusion . . .127 

 By George A. Smith, Eugenics Record Office 



A Culture Method for Paramecium multimicronucleatum and 



Oxytricha jallax l2 & 



By A. C. Gtese, Stanford University 



The Cultivation of Nyctotherus ovalis and Endamoeba blattae 



(Reprinted) 128 



By Harry E. Balch, University of California 



A Method for Culturing Bursaria truncatella (Reprinted) . .129 

 By Amos B. K. Penn, Tsing Hua University, Peiping, China 



Uroleptus mobilis (Abstracted) 13° 



By Gary N. Calkins, Columbia University 



Methods for Culturing Pleurotricha 13 1 



By Amos B. K. Penn, Tsing Hua University, Peiping, China 



