42O 



INDEX. 



Pepsin, commercial, 155 



isolation, 154 



-peptone, 183 



preparation, 154 



tests, 156 



valuation, 157 

 Pepsinogen, 130 

 Peptones, 93, 178 



in feces, 210 



tests, 96, 156 



Peptonization of milk, 294 

 Percentage composition of body, 9, 

 10 



variation in urine, 353 

 Permanganate reagent, 14 

 Perspiration, losses in, 389 

 Pfeiffer's phenomenon, 274 

 Phagocytes, 264 

 Phenol-phthalein indicator, 163 

 Phenols formed in intestines, 195 

 Phenomena of Pfeiffer, 274 

 Phenyl alanine, 76 



alanylglycylglycine, 182 



amino propionic acid, 76 



glucosazone, 30 



hydrazine, 27 

 tests, 30 



sulphuric acid, 358 

 Phloroglucin test, 159 

 Phosphates, 17 



in urine, 359 

 Phosphocarnic acid, 181 

 Phosphorus in body, 10 



in urine, 359 

 Physical composition of milk, 287 



methods, 248 

 Physiological chemistry, scope, 2 



importance of water, 15 

 Phytoglobulins, 84 

 Phytovitellins, 84 

 Picric acid, 72 

 Pigment tests, bile, 324 

 Pigmentation, 258 

 Pigments of bile, 323 

 Plants and animals, relations, 2 

 Plasmon, 87 

 Pleural transudates, 283 

 Poisoning by carbon monoxide, 225 

 Poisons and liver, 314 



formed in intestines, 197 

 Polariscope, 39 

 Polarization tests, 39 

 Polyhydric alcohols, 23 

 Polypeptides, 78, 182 

 Polysaccharides, 24, 41 

 Potassium in body, 10 



indoxyl sulphate, 179 



Potassium permanganate reagent, 14 

 Potatoes as diet, 407 



food value, 113 



starch from, 43 

 Potential energy of food, 392 

 Powder, pancreas, 175 

 Precipitation by salts, 68 



limits, 67 

 Precipitins, 267 

 Preparation of bile acid, 321 

 Preservatives of milk, 297 

 Pressure, osmotic, 248 

 Primary albumoses, 96 



phosphates, 18 

 Products of peptic digestion, 169 



tryptic digestion, 180 

 Proline, 182 

 Propepsin, 130 

 Propionic acid, 51 

 Protagon, 335 

 Protamine, 101 

 Proteids, 66, 100 

 Protein coagulation, 68 



requirement, 409 



substances, 64 



synthesis, 78 

 Proteins and alkalies, 75 



as bases, 152 



autolysis, 312 



classification, 65 



coagulating, 84 



determination of, 73 



formulas, 65 



heats of combustion, 395 



in feces, 208 



in milk, 294 



in muscle, 337 



reaction of, 66 

 Proteoses, 95 

 Proteolytic reactions, 128 

 Prothrombin, 216 

 Protones, 102 

 Protoplasm, 303 

 Pseudo acids, 69 



bases, 69, 79 



celluloses, 49 



pepsin, 190 

 Psychic stimulus, 150 

 Ptyalin, 117, 146 

 Purification of water, 12 

 Purine bases, 104 



bodies, 363 



Pus cells, composition, 284 

 in feces, 212 



serum, 283 

 Putrefaction, 192 

 ^yloric glands, 150 



