INDEX. 



1349 



defines, relation of oleic acids to the, 



1229 

 Oleic acid, a constituent of human fat, 



1229-1230 

 Olein (tri-olein), preparation of, 1230 

 Ortho-dihydroxybenzene, 1279 

 Osazones, the, 1216 



,, formation of the, 1216 



Ossein, 1199 

 Oxalic acid series, the, 1235 



,, ,, amido-acids of the, 1252 



Oval uric acid, 1262 

 Oxy-h;cmoglobin, preparation, 1291 



,, difference in crystals of, from 



different sources, 1291 

 ,, spectra of, 1292 



Oyster, presence of glycogen in the, 1213 



Palm oil, palmitin obtained from, 1230 

 Palmitic acid, 1228, 1230 

 Palmitin (tri-palmitin) , 1230 

 Pancreas, the amylolytic enzyme of the, 



1190 

 Pancreatic juice, its action on starch, 



1222. 1223 

 Papain, elastin dissolved by, 1204 

 Para-dihydroxybenzene, 1280 

 Paraglobulin (serum-globulin), chemistry 



of, 1173 

 Paramyosinogen, 1175 

 Parapeptone, 1178, 1179 

 Paraxanthiue, 1267 



,, isomer of theobromine, 1267 



Pentose group, 1217 



,, in diabetes, 1217 

 Pepsin, preparation of, 1191 

 Pepsinogen, an antecedent of pepsin, 1191 

 Peptones, 1167, 1178 



,, preparation of, 1184 



,, their absorption and fate in 



the body, 1186 

 Petroleum-ether, 1272 

 Pettenkofer's reaction for bile-acids, 1289 

 Phenol, 1278 

 Phenylic acid, 1278 

 Phenyl-glucosazone, 121S 

 Phenyl-hydrazin, as reagent for the 

 sugars, 1216 

 ,, in formation of osazones, 1216 

 ,, its action on maltose, 1223 

 Phenyl-lactosazone, 1224 

 Phenyl-maltosazone, preparation of, 1222 

 Phenyl-sulphuric acid, 1279 

 Phosphorus, its presence in casein, 1207 

 ,, a constituent of mucin, 1198 



,, percentage of in nuclein, 1206 



., its presence in protagon, 1240 



Pigments of the animal body, 1290 

 ,, humus, 1M09 



,, indoxyl-, 1310 



,, retinal, 1312 



Pigments of urine. 1307 



,, ,, as affected by drugs, 1311 



,, of the suprarenal bodies, 1317 



Piotrowski's reaction for proteids, 1166 



Piria's reaction for tyrosine, 1276 



Plants, occurrence of leucin in, 1244 

 ,, proteid metabolism of, 1253 

 ,, alkaloidal principles of, 1271 



Propeptone, 1183 



Propionic acid, 1226, 1232 



Protagon, 1240 



Protalbumose, 1184 



Proteids, 1164-1189 



,, composition of, 1165-1187 



,, crystalline, 1165 



,, ash of, 1165 



„ general reactions of, 1166 



,, classification of, 1166 



,, coagulated, 1167, 1177 



,, digestive changes of, 1178, 1179 



,, duplexity of molecule of, 1179 



,, their decomposition by acids, 



1178, 1181, 1187 

 ,, products of decomposition of, 



1186 

 ,, theories of the constitution of, 

 1187 



Protogelatose, 1201 



Pseudoxanthine, 1286 



Ptomaines, the, 1284-1286 



,, their similarity to vegetable 



alkaloids, 1285 



Ptyalin, preparations of, 1190 

 ,, its action on starch, 1190 



Ptyalinogen, in saliva of horse, 1190 



Purple, visual, 1313 



Pus-cells, nuclein prepared from, 1205 



Pus-corpuscles, presence of glycogen in, 

 1213 



Putrefactive organisms, action on cellu- 

 lose of, 1215 



Putrescin, 1286 



Pyocyanin, 1317 



Pyoxanthose, 1317 



Pyrocatechin, 1279 



Rennet, milk-curdling ferment, 1194 note 



,, use of, in cheese-making, 1194 

 Rennin, its clotting action on milk, 1208, 

 1194 

 ,, its enzymic nature, 1195 

 Renninogen, 1194 

 Reticulin, 1201 



Retina, pigments of the, 1312-1315 

 Rhodophane, 1313 

 Rhodopsin, 1313 



Rotation of light, mode of measurement 

 of, 1218 



Saccharose, 1221 



Saliva, ptyalin a constituent of, 1190 



