INDEX 



323 



Hansen, 32, 143, 149 



Harden, A. (see also Harden and 



Toung), effect of blood serum on 



yeast juice, 139, of phosphates 



on fermentation, 116 ; researches 



on acid fermentation, 152, 156, 



on zymase, 13 

 Harden and WaVpole, action of B. 



laotis aerogenes on glucose and 



mannit, 156 

 Harden and Young, on fermentation 



by yeast juice, 139-143 

 Eamack, 187 

 Hearson incubator, 29 

 Helioin, 97 



Hellriegd and Wilfarth, 233 

 Hempel gas burette. 163, 166 

 HeterocycUo compounds, 51 

 Hexite, 86 



Hexone bases, 197, 204 

 Hexose phosphate, 142 

 Hexoses, 83, 90, 91, 94, 99, 270 

 Hexyl iodide, 92 

 Hippuric acid, 213, 215, 257 

 Histidin, 197, 198 

 Histones, 204, 208 

 Hoffmeister, 203 

 Homologous series, 47 

 Honey, 92 

 Boogewerff, 247 

 Humus, 167, 258, 259, 282 



tanks, 303 

 Hutchinson, 261, 262 

 Hydrazine, 57, 88 

 Hydrazone, 87 

 Hydrides, 4 

 Hydriodic acid, 92 

 Hydrocyanic acid, 59, 61 

 Hydrogel, 10 

 Hydrogen cyanide, 96 



sulphide, oxidation of, 237 ; 

 production of, 237 

 Hydrolysis, 6-57 ; of cellulose, 160 ; 



of fats, 170 ; of glucosides, 97 ; 



of starch, 101 

 Hydrolytic tank, 287 

 Hydroquinone, 97 

 Hydrosol, 10 

 Hydroxides, gelatinous mineral, 



10 



Hydroxy-aniino acids, 197 

 iydroxyl group, 52, 146 

 H;yphae, 18, 19, 33, 34 



Hyphomycetes, 18 

 Hypoxanthin, 200 



Imhoff, 287 

 Imino group, 196 

 Incubator, 29 

 Indian black tea, 250 

 Indican, 97, 247, 249 

 Indigo, 2, 245-249 



brown, 248 

 Indigofera Sumatrana, 249 

 Indigotin, 246, 248 

 Indirubin. 248 

 Indol, 194, 195, 196 

 Indol-amino-propionic acid, 195 

 Indoxyl, 97, 247, 248 

 Infusoria, 34 

 Inosite, 92, 150 

 Inversion, 94 

 Invert sugar, 92, 126 

 Invertase, 117, 126, 128, 131, 136 

 Ions, 11 



Irreversible action, 10 

 Isatin, 248 



Iso-butyl-o-amino-aoetic acid, 196 

 Isooyanide, 61 

 Isooyclic compounds, 51 

 Isolactase, 129 

 Isomaltose, 14 



Isomeric compounds, 60, 100 

 Isomerism, 58, 60 

 Isotonic solutions, 12 



Japanese laoqubb, 175 



Java, nitrous organism from, 221 



Kastel, 172, 174 

 Kek^lU, 47, 48 

 Keratin, 209 

 Ketohexose, 86, 90, 92 

 Ketopentose, 86 

 Ketotetrose, 86 

 Ketone aldehyde, 89 

 Ketones, 53, 59, 85, 145, 148 

 Ketonic acid, 62 

 Ketoses, 85, 86 

 Kieselguhr, 137 

 Kiliani, 89, 91 

 Kipping, 82 

 Koch, 20 



