714 



SUBJECT INDEX. 



Invertase, 467, 482, 512. 



Invertin, 61, 461. 



Invert-sugar, 29, 38. 



Iodine, 41, 406, 607. 



lodothyrin, 607, 608. 



Ions, 358, 359, 592. 



Iridese, 44. 



Iron, 380-402. 



Iron, bacteria, 194. 



Iron content of foodstuffs, 380, 381 ; of 



rabbits, 681 ; guinea pigs, 682. 

 Isoamylalkohol, 149, 455, 470. 

 Isobilianic acid, 515. 

 Isobutyric acid, 455. 

 Isobutyl-acetic acid, 455. 

 Isocholesterol, 117. 

 Isodynamics, law of, 331, 336. 

 Isolactose, 38, 480, 481. 

 Isoleucine, 148. 

 Isomaltose, 37, 479-481. 

 Isomers, behavior in hydrolysis, 471-476. 

 Isotonic solutions, 550. 

 Iso valeric aldehyde, 149-455. 

 Isovalerianic acid, 455. 

 Isovalero-nitrile, 149. 

 Ixodis-ricinus, 547. 



J. 



Jalap, rhodeose in, 19. 



Jecorin, 49. 



Jejunum, iron absorption in, 389 et seq. 



Jequirity seeds, 682. 



Johannisbrot tree, cane sugar in, 38. 



K. 



Kephir lactase, 38, 480. 



Keratins, 138, 176. 



Ketoses, 19. 



Kidneys, glycogen in, 47; glucothionic 



acid, 49; elimination of sugar, 82; 



hippuric acid, 246, 247; elimination 



of iron, 388; of lime, 392, 397; 



function of, 579-594. 

 Kynurenic acid, 153, 260. 

 Kyrins, 177. 



L. 



Laborer, diet of, 645, 646. 



Laccase, 447. 



Lactarius volemus, 29. 



Lactase, 323, 482, 513. 



Lactates, oxidation of, in diabetes, 93. 



Lactation, 386. 



Lactic acid, 238, 303, 304; from carbo- 

 hydrates in the intestine, 63; as 

 intermediate product in alcoholic 

 fermentation, 483. 



Lactic-acid-ferment, 482. 



Lactic-acid fermentation, 27, 469. 



Lactobiose, 39. 



Lacto-glucase, 38. 



Lactose, 39. 



Laevulic acid, 282, 306, 313. 



Lsevulic aldehyde, 306, 313. 



Laked blood, 550. 



Lampyris splendidula, 411. 



Langerhans cells in the pancreas, 90, 

 93. 



Lanolin, 105. 



Large intestine, elimination of iron in, 

 389 et seq. 



Latent period of the stomach, 498. 



Lathrsea squamaria, 122. 



Laurie acid, 102. 



Lavosin, 44. 



Laws, of isodynamics, 331-348; of conser- 

 vation of energy, 334 et seq. ; of the 

 minimum, 356; of gas-absorption, 

 413 ; of specific sense energy, 494. 



Lecithides, 115. 



Lecithin, 112-116, 403; content in cer- 

 tain organs, 114; cleavage by lipase, 

 115; activates, 115; in nervous 

 tissue, 613. 



Legumin, 132. 



Leguminoses, 196. 



Legumes, legumin in, 132. 



Lens, crystalline, 138. 



Lentils, iron content, 381. 



Leptothrix ochracea, 194. 



LeucaBmia, 290. 



Leucine, 148, 239, 304, 305, 325; decom- 

 position of the d-l form in the organ- 

 ism, 453, 454 ; cleavage by fungi, 470 ; 

 cleavage by yeasts, 470; taste, 494. 



Leucine-ethyl-ester, 475. 



Leucine carbonate of calcium, 233. 



Leucinimide, 169. 



Leucocytes, glycogen, 47: uric acid, 389; 

 in blood coagulation, 540; in general, 

 551 et seq. 



Leucyl-alanine, 179, 474. 

 -alanyl-alanine, 179. 

 -asparagine, 183. 

 -aspartic acid, 182. 

 -glycine, 179, 474. 

 -glycyl-glycine, 179, 181, 474. 

 -isoserine, 474. 

 -leucine, 179, 186, 228, 474. 

 -proline, 179, 474. 

 -tetraglycine, 179. 

 -Z-tyrosine, 181, 474. 



Levulose, 27. See d- Fructose. 



Lichenin, 44. 



Lichens, 53. 



Lieberkiihn's glands, 512. 



Liebermann's reaction for proteins, 162. 



Life without bacteria, 64. 



Ligamentum muchse, 138. 



Lignification, 42. 



Liliacese, 44. 



Limax, 46. 



Limonene, 118. 



Lipoids, solubility of, 112. 



Lipase, 103, 475, 482; of stomach, 429; 

 of intestinal juice, 512. 



Lithium, 407. 



