148 
Scientific Proceedings (44). 
second inoculation with tumor material of experimentally 
increased virulence. 
White, George F. 
532, 533. See Van Slyke, D. D. 
Williams, Anna W. 
557. Pure cultures of parasitic amebas on brain-streaked 
agar. 
Williams, H. B. 
559. A respiration calorimeter of the Atwater-Rosa- 
Benedict type, designed for use with dogs and children ; with 
demonstration. 
560. [with J. A. Riche and Graham Lusk.] The chemical 
and energy transformations in the dog after the ingestion 
of different quantities of meat. 
Wolf, C. G* L. [with Ernst Sachs.] 
546. Metabolism after hypophysectomy. 
Woodruff, L. L. 
586. The effect of culture medium contaminated with 
the excretion products of Paramaecium on its rate of 
production. 
598. [with G. A. BaitselL] Beef extract as a ' 'constant" 
culture medium for Paramcecium aurelia. 
