D56 



IXDEX 



Waters, mineral, carbonated, 848. 



classification of, 845. 



diuretic property of, 847. 



iron, 851. 



radioactive, 852. 



saline waters, 846. 



sulphur, 851. 

 Waxes, as simple lipoids, 185. 



beeswax, 185. 



cetin, 185. 



wool wax (lanolin), 185. 

 Weight, relation of, to surface area, 



598. 

 Willis (1621-1675), on respiration, in 



history of metabolism, 11. 

 Winds, effects of, 902. 

 Winterstein's apparatus for measuring 



respiratory exchange, 530. 

 Wool wax, 385. 



Work, influence of, on food consump- 

 tion, 391. 



Xanthin, in muscle tissue, 461. 

 Xanthin oxidase, distribution of, 156. 

 Xantho proteic reaction, 98. 

 Xylose, 241. 



Yeast cells, activity of, von Liebig's 



discussion of, 54. 

 Yeast nucleic acid, fundamental 



groups of, 136. 



Zanthin, 137, 138. 



Zinc, effect of, on metabolism, 758. 



Zuntz, Nathan (1847-1920), work of, 

 on metabolism, 76. 



Zuntz and Gepperfs method of measur- 

 ing respiratory exchange, 538. 





