INDEX 



317 



Proteins, (Continued) 



katabolic products of, 204. 



katabolism of, 204. 



metabolism of, 201-208. 



metabolizable energy of, 298. 



milk, 211. 



molecular weight of, 90. 



nitrogen of katabolized, 205. 



non-nitrogenous portion of, 206. 



occurrence in plants, 284. 



oxidation of, in body, 203. 



physical properties of, 88. 



precipitation tests for, 96. 



solubility of, 93. 



synthesis of, in body, 203. 



test for nitrogen in, 93. 

 Proteoses, 172, 173. 

 Prothrombin, 224. 

 Protoplasm, 88, 154. 

 PtyaUn, S3, 121, 140, 145, 165, 166. 

 Purine, 102. 



dihydroxy, 103. 



trihydroxy, 103. 

 Purine bases, 97, 102. 

 Pyroligneous acid, 29, 50. 

 Pyroxylin, 128. 



Racemic acid, 79. 

 Racemic compounds, 79. 

 Radicals, 12. 

 Raffinose, 108. 

 Red corpuscles, 220, 

 Reductases, 145. 

 References, Section I, 135. 



Section II, 257. 



Section III, 305. 

 Rennet, 212. 

 Rennin, 145, 173, 177, 212. 



action of, 175. 

 Renovated butter, 217. 

 Reserve food in plants, 244. 

 Resins, 247. 

 Resorption, 183. 

 Respiratory quotient, 196, 197. 

 Rhamnose, no. 

 Rochelle salts, 77, 112. 

 Rubner, 299. 

 Rum, 37. 



Saliva, 33, 121, 122. 

 action of, 165, 167. 

 alkalinity of, 167. 

 amount of, 165. 

 digestion of carbohydrates by, 165. 



Saliva, (Continued) 



enzymes of, 166. 



experiments, 168. 



organic substances in, 168. 



properties of, 165. 



salts in, 167. 



stimulation of flow of, 165. 

 SaUvary glands, 165. 

 Saponification, 60. 

 Sarcolactic acid, 223. 

 Schweitzer's reagent, 126. 

 Secretin, 176. 

 Seidlitz powder, 77. 

 Serine, 86. 



Serum albimiin, 202, 223, 224. 

 Silage, 74. 



Silk, artificial, 127, 263. 

 Skatol, 287. 



Smokeless powder, 127. 

 Snake venom, 225, 283. 

 Soap, 60. 



experiments, 63. 



properties of, 64. 

 Sodium, as plant food, 152. 



in plants and animals, 147, 

 Sodium bicarbonate, 77. 

 Sodium hypobromite solution, loi. 

 Soil food, of plants, 250. 

 Sorbitol, 41, 106. 

 Sorghum cane, 116, 274. 

 Space isomerism, 69. 

 Spermaceti, 57. 

 Starch, 35, 108, 120, 121-124, 267-270. 



acid hydrolysis of, 123. 



action on Fehling's solution, 121. 



action of saUva on, 169. 



as food, 268. 



determination of, 123. 



enzymatic hydrolysis of, 122. 



experiments, 123, 270. 



fermentation of, 120. 



hydrolysis of, 122. 



hydrolysis of, in germination, 120. 



industrial uses of, 268. 



in crops, 268. 



in plants, 244. 



iodine test for, 122. 



occurrence, 121. 



properties of, 121. 



saUvary digestion of, 166. 



soluble, 166. 

 Starch grains, 122. 

 Starch paste, 122. 

 Steapsin, 145, 180. 



