SUBJECT INDEX 



337 



Erbium chloride as catalyst, 83 

 Esters, heat of formation of, 162 ^ 



saponification of, 181 



syntheses by lipase, 155 

 Ethyl alcohol. See Alcohol 



butyrate, synthesis of, 155 



ether as negative catalyst, 214 



production of, 235 



iodide as negative catalyst, 214 



reaction with triethylamine, 238 

 Excretion, 245 



Experiments on photo -synthesis, 45- 

 47, 49-51, 81, 87-91, 103-113, 118-122 



on velocity of reaction, 182-190 



Fagus sylvatica, iron in, 58 

 Fatigue in nerve fibres, 4, 8, 9 

 Fats, absorption in the intestine, 261, 

 272 



equilibrium of hydro lysis, 153 



oxidation of, 315 



synthesis from carbohydrates, 315 



synthesis in the body, 155, 156 



transference in the body, 315 



union of proteins with, 314 



Ferric hydroxide, colloidal, photo- 

 synthesis by, 47-51, 79-81 

 preparation of, 47 



Ferrous oxide, origin of, 82 



Food, effects on digestive secretions, 

 296-299 



Food factors, accessory, 208 



Formaldehyde, action of light on, 83-91 



as nutrient, 109, 110 



detection of, 44 



formation from organic substances, 

 91-96 



origin in leaves, 93 



photo-synthesis of, 25, 38-52 



toxic action of, 96 

 Fungi, iron in, 58, 65 



Gases, absorption by colloidal metals, 



228, 309 

 by colloids, 237 



secretion in the animal body, 135, 

 136 



Gastric glands, nervous mechanism of, 

 276-282 



juice, secretion of, 277-282 



secretion of hydrochloric acid 

 in, 272 



secretion, chemical mechanism of, 

 293-295 



in relation to food, 296 

 Gastrin, 247, 293 



Gelatin, action of trypsin on, 189 



hysteresis of, 12 



Glands, secreting, blood-supply to, 272, 

 273 



periodicity of, 13 

 Glandular mechanisms, 245-299 



Glucose, conversion into alcohol, 188 

 equilibrium with maltose, 148, 153 



heat of conversion into maltose, 84 

 Glucosides. action of emulsion on, 185, 



222 

 Glycerides, equilibrium of hydrolysis, 



153 



Glycerine, action of light on, 92 

 Glycine, 306 

 Glycocholic acid, 307 

 Glycocoll, 306 

 Glycogen, action of light on, 92 



in the liver, 314 

 Glycolaldehyde, synthesis of, 90 

 Glycosuria, 314 



Gold, colloidal, 229 



Grass, iron in, 67 



Griess-Ilosvay test, 73 



Gun-cotton, spontaneous explosion, 221 



Haematoxylin test, 59, 60, 63 

 Haemoglobin, combination with oxygen, 

 256, 257, 310 



spectrum of, 31 



Heart, action of anaesthetics on, 303 

 Heart muscle, effect of inorganic ions 



on, 301-303 

 Heat energy, 142 



Helicin, action of emulsion on, 222 

 Hippuric acid, 307 

 Hormones, 288-299 

 Hydriodic acid, reaction with hydrogen 



peroxide, 236 

 Hydrochloric acid, secretion in gastric 



"juice, 272 

 Hydrocyanic acid, inactivation of 



platinum by, 215, 227, 230 



toxicity to cells, 212 



Hydrogen, reaction with bromine, 151 



peroxide, action on colloidal plati- 

 num, 215 



action on metallic oxides, 242 



decomposition of, 229 



in air, 73 



reaction with hydriodic acid, 



236 



sulphide, inactivation of platinum 

 by, 226, 231 



Hydrogen-ion concentration, determi- 

 nation of, 184 



Hydrolysis, equilibrium of, 148, 153- 

 156 



Hyperglycsernia, 314 



Hysteresis of colloids, 12 



Immunity, 222 

 Infection, theory of, 213, 221 

 Inorganic ions, effect on heart muscle, 

 301-303 



mutual replacement of, 319 



union with proteins, 318, 321 



Intermediate reactions, theory of, 235 

 22 



