SUBJECT INDEX 



339 



Oxyhsemoglobin, formation of, 256, 



257, 310 

 Ozone in air, 73 



Palladium chloride as catalyst, 83 

 Pancreas, blood-supply to, 273 



nervous mechanism of, 282-288 

 Pancreatic fistula, preparation of, 284 



secretion, chemical mechanism of, 

 288-293 



relation to food, 297 

 Pepsin, action on egg-albumin, 200 

 Pepsin ogen, 217 

 Permeability, 258-261, 317 

 Peroxydases, 227 



action of heat on, 204 

 Phloridzin, action of emulsin on, 222 

 Phosphates, distribution in blood, 323 

 Phosphorescent organisms, 14 

 Photo-synthesis and the origin of life, 



38-52" 



by inorganic colloids, 38-52, 79-83 



in fresh-water algse, 99-114 



in green cells, 53-68 



in marine algse, 115-147 



of organic from inorganic compounds, 

 79-98 



Physical union, mode of, 312 

 Physiological balance of salt solutions, 



207 



Pigments, absorption of light by, 97 

 Piperidine, poisonous action of, 313 

 Plants, assimilation in, 69-78, 99-114, 



115-124 



inorganic iron in, 53-68 



photo-synthesis in, 53-68, 99-114, 

 115-124' 



Plasma, distribution of ions between 



lymph and, 316 

 Platinum, colloidal, 227-231 



action on hydrogen peroxide, 

 215 



Platinum-silver alloys, action on nitric 



acid, -24-2 



Pleurococcus, iron in, 66 

 Poisons, action on enzymes and cells, 



211-213 



Polarity of amido-acids, 307 

 Polypeptides, sjTithesis of, 305 

 Potassium acid tartrate, crystallisation 



of, 235 



bichromate, specific action of. 22'2 



cyanide as negative catalyst, 214 



salts, effects on cells, 255, 256 

 Prochymosin, 217 

 Prosecretin, 283 



Proteins, constitution and cleavage 

 products, 305 



hydrolysis of, 189 



synthesis of, 315 



union with carbohydrates, 314 



union with fats, 314 



Proteins, union with inorganic ions, 318, 



321 



Prothrombase, 225 

 Protoplasm, chemical nature of, 304 

 Pyrites, origin of, 82 



Quinine, action in malaria, 332 



as negative catalyst, 214 



sulphate, penetration by light, 47 



Radiations, action on living cells, 207 

 Rain, nitrates and nitrites in, 72-77 

 Reducing substances, detection of, 86, 



87 



Rennin, concentration and activity, 199 

 Reproductive processes, cyclic activity 



of, 16 

 Respiration, 245 



pressures required for, 329-331 

 Revertose, 154 



Ringer's solution, 207, 210 



Salicin, action of emulsin on, 185, 222 

 Salicylic acid, toxic action of, 212 

 Saliva, secretion of, 273 

 Salivary glands, nervous mechanism 



of, 275, 276 

 Salts, distribution in blood, 323 



distribution of ions in living cells, 316 

 Salt solutions, physiological balance of, 



207 



Schiff's reagent, 44 

 Schryver's test, 44 

 Schiftz's law, 199 

 Sea -water, fixation of carbon and 



nitrogen, 115-122 

 Secretin, 245, 247, 283, 288-23 

 Secretion, 245-299 



chemical mechanism of, 288-299 



influence of nervous system on. 

 274-288 



Serum, reaction of, 320, 321 

 Silicic acid as catalyst, 80, 83 

 Silver, colloidal, 229 

 Silver-platinum alloys, action on nitric- 

 acid, 242 

 Sodium chloride, secretion of, 267, 269 



fluoride, toxic action of, 212 

 Solubility variations in catalysis, 237 

 Solutions, energy conditions in, 142 

 Sorbose, synthesis of, 86, 90 

 Spircgyra, iron in, 66 



Starch, action of diastase on, 189 



action of light on, 92 

 production of , 27 

 Stomach, secretion in, 279-282 

 Strychnine, effect on nerve cells, 313 

 Submaxillary glands, blood-supplv to. 



272, 273 



I nervous mechanism of, 275 



! secretion pressure in, 249 



! Sugar in blood, 313 



