INDEX OF SUBJECTS 627 



Pineal gland, 595 Protamine sulphate in chloroform emui- 



relation of, to secondary sex sions, 288 



characters, 500 synthesis, 224 

 Pineapple, proteolytic enzyme in, 214 Protamines, 126, 136 



Pituitary gland, 117 compounds of, with proteins, 170 



in growth, 494 molecular weight of, 171 



hypertrophy in pregnancy, 379, rate of extraction of, by acid, 535 



381 Proteases, 206 



inosite in, 93 Protein coagulation, 164, 169 



Pituitrin, 118, 199, 379, 500 complexes, 330 



Placenta, 378 in blood plasmas, 359 



Planaria, reversion of growth in, 486 dissociation of, 171 



Plant nucleic acid, 173 compounds, 148-151 



Plants, growth of, 482 dehydration of, 167 



curves of, 474 intake on hard work, 583 



Plasma, 335 ions, 157 



Plasmolysis, 263 jellies, swelling of, 304-308 



temporary, 265 metabolism in work, 394 



Plasmolyzing agents, 204 molecule, types of union, 148-151 



Plattner's crystallized bile, 102 requirement of children, 592 



Pneumonia, 341 in dietary, 578 



Poiseuille's law, 301 salts, 306 



Polar seas, density of population of, 426 in blood, 277 



Polarized light, 435 solutions, conductivity of, 296 



Polyneuritis, 193 osmotic pressure of, 302-304 



Polypeptide structure of proteins, 151- structure in, 297 



157 SJ Hirers, 491 



Polypeptides, 132, 142 synthesis, 138 



ultraviolet spectrum of, 433 localization of, in organism, 245 



in urine, 554 in tissues, 243 



Polysaccharides, 53, 81-89 Proteins, 568 



Positive phase, in intravascular clotting, acid combining capacity of, 156 



343 aldehyde groupings of, 436 



Posterior lobe of pituitary, 499, 500 amphoteric character of, 151 



active principle of, 117 biological values of, 58 



Potassium in diet, 35 in blood serum, 339 



myronate, 89 calorific value of, 569 



in tissues, 329 classification of, 124-125 



Potentiometric method, 273 coagulation of, by salts, 158-169 



Preadolescent hyperpituitarisrn, 495 combination of, with precipitating 



Precipitating power of salts, 158 ion, 164 



Precipitation of proteins, 158 of connective tissue, composition of, 



reactions of proteins, 122 245 



Precipitins, 239, 331 

 Pregnancy, toxemia of, 395 

 Pressor principles, 197 



digestion of, 238-249 

 in emulsification, 288 

 in formation of acid secretions, 328 



Primary proteose, 130 free carboxyl-group in, 153 



free ammo-groups in, 150 general characteristics of, 120-122 



Products of growth, 493 in growth and maintenance, 490 



accumulation of, 482 heat units of, 393 



effect of removal of, 513 hydrolytic decomposition products 



Proline, 356 of, 155 



formula, 135 inhibition of cytolysis, 456 



in prolamines, 127 isodynamic values of, 577 



Prolamines, 127, 136 molecular weight of, 303 



Propionic acid, 108 precipitation of, by salts, 158-169 



in oxidation of fats, 411 respiratory quotient of, 538 



Propyl alcohol, solvate formation of, 166 in sclerous tissue, 516 



Prosecretin, 373 as source of muscle lactic acid, 398 



Prosthetic group in lecithoproteins, 129 specific dynamic action of, 578 



in nucleoproteins, 128, 173 standard requirement of, 579 



Protagon, 118 i Proteolytic enzymes, effect of reaction 



hydrolysis of, 196 on, 217 



Protamine casemate, antigenic proper- I specificity of, 220 



ties of, 332 I Proteoses, 130, 132 



