502 



SUBJECT INDEX 



Vitamine B, animal tests with, 185 

 solubility of, 194 



in olive oil, 191 

 sources of supply of, 192 

 stability of, 167 

 stability of, against heat, and 



chemical and physical agents, 



194, 195 

 Vitamine C, chemistry and nature of, 



231 



effect of, on beriberi, 41 

 effect of, on growth, 43 

 formation of, on germination of 



grains, 41, 49, 246 

 in differential diagnosis of scurvy, 



307 

 influence of, on growth and weight 



of infants, 158, 159 

 stability of, 235 

 various means of fractionation and 



concentration of, 232, 233, 234, 



235 

 Vitamine D, in growth of certain 



bacteria, 205 

 in growth of rats, importance of, 



205 

 in yeast, demonstration of, 204, 



205 

 separation of, from vitamine B, 



204, 205 



W 

 War edema, unlikelihood of lack of 



protein as cause of, 347 

 Wheat, vitamines in, localization of, 



249 



X 



X-ray, in diagnosis of scurvy, 307 

 in study of therapy of rickets, 322, 

 323 



Yeast, active crystalline substance 

 obtained from, 178, 179, 180, 181 

 analysis of, 182, 183, 184 

 animal tests with, 185 



as rich source of vitamine B, 51 

 attempts to isolate vitamine B 



from, 177 



chemical investigation of, 177 

 curative influence of, on beriberi, 



51 



dialysis of, 190 

 fermentation of, as affected by 



certain organic substances, 51, 



52, 53 

 growth of, influence of autolyzed 



yeast on, 52, 53 

 growth of, influence of size of 



inoculation, 51 

 growth of, inhibition of, 53 

 growth of, in presence of as- 



paragine, 52 

 growth of, in presence of peptone, 



52 

 growth of, in presence of vitamine 



extracts, 52, 54 

 growth of, method of Bachmann, 



54, 198 



growth of method, of Eddy, 198 

 growth of, method of Funk-Dubin, 



200, 201, 202 



growth of, method of R. J. Wil- 

 liams, 53, 54, 199 

 growth of, not a measure of vitamine 



B, 53, 203 



growth of, unaffected by vita- 

 mine C, 54 

 in growth of bacteria, influence of, 



56 



in nutrition of flies, role of, 84 

 methods for fractionation of, 186, 



187, 188, 189, 190, 191 

 substance isolated from, 184, 185 

 substances isolated from, animal 



tests with, 185 



synthesis of vitamine by, 51, 55 

 treatment of, with colloidal arsenic 



sulfide, 189 

 treatment of, with fuller's earth, 



188, 189 



treatment of, with mastic, 189 

 treatment of, with norit, 62, 63 



