INDEX 



627 



" Hedgehog spines," 567. 

 Hehner value (fats), 179, 182. 

 Helianthin, 337. 



Heller's test (proteins), 368, 571. 

 Hemicellulose, 205, 213. 

 Hemiterpenes, 313. 

 Heneicosane, 51. 

 Heptadecane, 51. 

 Heptamethylene, 237. 

 Heptanes, 51. 

 Heptyl alcohol, 70. 

 Heterocyclic compounds, 276-309. 

 Heteroproteose, 372-373. 

 Heteroxanthine, 297. 

 Hexadecyl alcohol, 70. 

 Hexahydric alcohol, 190, 195. 

 Hexahydrobenzene, 237, 310. 

 Hexahydrocymene, 313. 

 Hexamethylene, 237, 310. 

 Hexamethylenetetramine, 82, 551. 

 Hexane, 51. 

 Hexapeptides, 363. 

 Hexosan-pentosans, 205. 

 Hexosans, 205. 



Hexose in nucleic acids, 299, 300. 

 Hexoses, 184, 185-189, 213, 303. 

 Hexyl alcohol, 70. 



iodide, 186. 

 Higher alcohols, 70. 



fatty acids, 99. 

 Hippocoprosterol, 321. 

 Hippuric acid, 141, 142, 258. 

 Hirsch funnel, 15. 

 Hirudin, 439. 

 Histamine, 284. 



Histidine, 137, 284 285, 361, 362, 434. 



Histones, 364, 433 434. 



Histopeptone, 371. 



Homogentisic acid, 27!) 569. 



Homologous series, 49. 



Homologues of benzene, 251, 252. 



Hopkins' test (lactic acid), 112. 



Hoppe-Seyler's method (haemoglobin), 488. 



Hormones, 408. 



Hufher's method (urea), 134. 



"Humus," 191. 



Huppert's test (bile pigments). 429. 



Hurtley's test (aceto-acetic acid), 122. 



extractor, 600. 

 Hyalomucoid, 470. 

 Hydantoic acid, 277. 

 Hydantoin, 277, 278. 

 Hydrazobenzene, 331. 

 Hydrazones, 83, 90, 192, 250, 255. 

 Hydroaromatic compounds, 310-329. 

 Hydrobilirubin, 564. 

 Hydrocarbons, 49-56. 



halogen derivatives, 57-62, 63. 



nomenclature, 50. 



saturated, 50-53. 



unsaturated, 54-56, 312. 

 Hydrocellulose, 212. 



Hydrochloric acid (gastric contents), 427, 



428. 



Hydrocinnamic acid, 259. 

 Hydrocyanic acid, see Hydrogen cyanide. 

 Hydroferrocyanic acid, 157. 



as protein precipitant, 369. 



Hydrogen cyanide, 29, 83, 89, 139, 153-154, 

 156, 157, 193, 194, 215, 291, 395, 402. 



detection, 28. 



estimation, 31-33. 

 Hydrolyte, 394. 

 Hydroquinone, 215, 261-262. 

 Hydroterpenes, 312. 



Hydroxy acids, 106-123, J 4 r 395- 

 ureides of, 277-279. 



aldehydes, 186. 

 Hydrpxy-aminopropionic acid, 137. 

 Hydroxybenzoic acid, 341. 

 Hydroxybenzyl alcohol, 265. 

 Hydroxybutyric acid, 123, 570. 



estimation, 597-600. 



Hydroxybutyrobetaine, 150. 

 Hydroxyethyltrimethylammonium hydroxide, 



127. 



Hydroxyflavone, 338. 

 Hydroxyl group, 63. 

 Hydroxymethylfurfural, 193, 194, 303. 

 Hydroxyphenyl acetic acid, 269. 



alanine, 267. 



aminopropionic acid, 137, 267. 



ethylamine, 269. 



propionic acid, 269. 

 Hydroxyproline, 138, 139, 304, 305, 306, 361. 



betaine, 150. 

 Hydroxypropionic acid, no. 

 Hydrpxyquinol, 270. 

 Hygrine, 351, 353. 

 Hyocholalic acids, 328. 

 Hyoscine, 351. 

 Hyoscyamine, 351, 354. 

 Hypaphorine, 151. 

 Hypnone, 258. 



Hypobromite method (urea estimation), 134. 

 Hypoxanthine, 286, 294, 295, 206, 298, 299, 



584- 

 Hysteresis, colloids, 385. 



ICHTHULIN, 464. 



Idain, 341. 



Identification of organic compounds, 46-48. 



Imides, 276. 



Iminazole aminopropionic acid, 137, 284. j 



acrylic acid, 284. 



derivatives, 284, 285. 



ethylamine, 284. 

 Imino group, 124, 164. 

 Inactive tartaric acid, 116. 

 Inborn errors of metabolism, 569. 

 India-rubber, 238, 312, 318, 382. 

 Indian yellow, 186, 196. 

 Indican, 121, 344'345 35<>. 

 Indigo-blue, 342, 344, 345 34^ 35. 

 Indigo-red, 346. 



Indigotin, 345-346. 

 Indigo-white, 346. 

 Indirubin, 346. 

 Indole, 342-343, 349, 35- 



and derivatives, 342-350. 



acetic acid, 346^47, 349- 



aminopropionic acid, 138, see Trypto- 



phan. 



ethylamine, 347, 349. 



propionic acid, 347, 349. 

 Indophenol (oxidases), 412, 426. 



