INDEX 



323 



Hanscn, 32, 143, 149 



Harden, A. (see also Harden and 



Young), effect of blood serum on 



yeast juice, 139, of phosphates 



on fermentation, 116 ; researches 



on acid fermentation, 152, 156, 



on zymase, 13 

 Harden and Walpole, action of B. 



lactis aerogenes on glucose and 



mannit, 156 

 Harden and Young, on fermentation 



by yeast juice, 139-143 

 Harnack, 187 

 Hearson incubator, 29 

 Helicin, 97 



Hellriegel and Wilfarth, 233 

 Hempel gas burette, 163, 166 

 Heterocyclic 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 

 Hoogewerff, 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 fata, 170 ; of glucosides, 97 ; 



of starch, 101 

 Hydrolytic tank, 287 

 Hydroquinone, 97 

 Hydrosol, 10 

 Hydroxides, gelatinous mineral, 



10 



Hydroxy-amino acids, 197 

 Hydroxyl group, 52, 146 

 Hyphae, 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-a-amino-acetic acid, 196 

 Isocyanide, 6i 

 Isocyclic compounds, 51 

 Isolactase, 129 

 Isomaltose, 14 



Isomeric compounds, 60, 100 

 Isomerisra, 58, 60 

 Isotonic solutions, 12 



JAPANESE LACQUER, 175 



Java, nitrous organism from, 221 



Kastel, 172, 174 

 Kekule, 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 



