338 INDEX. 



HYDROGEN. By combining with oxygen contributes to produce the 

 animal heat, 23. 



I. 



ICE. Is judiciously employed as a remedy in cerebral inflammation, 

 249. 



INORGANIC constituents of albumen, fibrine, and caseine, 39, 116, 120. 



JOBST. His analysis of theine, 314. 



JONES, Dr. Bence. His analysis of vegetable fibrine, 283 ; of vegeta- 

 ble albumen, ib. ; of vegetable caseine, 284; of gluten, ib.; of the 

 albumen of yolk of egg, 289, 300 j of the albumen of brain, 300. 



IRON. Is an essential constituent of the globules of the blood, 253 el 

 seq. Is found in the fat of yolk of egg, 103. Also in the gastric 

 juice of the dog, 108. Singular properties of its compounds, 256. 



ISOMERIC BODIES. 99, 268. 



K. 



KELLER. His researches on the conversion of benzole acid into hip- 



puric acid in the human body, 315. 

 KIDNEYS. They separate from the arterial blood the nitrogenized 



compounds destined for excretion, 76. 



L. 



LACTIC ACID. See Acid, Lactic. 



LAVOISIER. His calculation of the amount of inspired oxygen, 12, 

 271. 



LEHMANN. On the presence of lactic acid in gastric juice, 107. 



LIEBIG. His analysis of sugar of milk, 287 ; of cane sugar, 289; of 

 aldehyde, 297 ; of uric acid, 308 ; of hippuric acid, 309 ; of qui- 

 nine, 313 ; of morphia, 314 ; of asparagine, 315. His calculation of 

 the carbon daily expired as carbonic acid, 13, 272. Table, 278. 

 His remarks on Demar<jay's researches on bile, 305-308. 



LIEBIG and PFAFF. Their analysis of caffeine, 314. 



LIEBIG and WOHLER. Their analysis of alloxan, 309 ; of urea, ib. ; 

 of allantoine, ib.\ of xanthic oxide, 310 ; of oxaluric acid, 311 ; of 

 parabanic acid, ib. 



LENTILS. Contain vegetable caseine, 46. Analysis of,' 272, 273. 

 Form part of the diet of soldiers in Germany, 275. Table, 278. 



LIGHT. Its influence on vegetable life analogous to that of heat on 

 animal life, 222. 



