INI- 



Sulphur, its presence in keratin, 88 



a constituent of cystin, 151 

 Bnlphuri 



Suprarenal bodies, pigment of, 269 

 . presence of ur. 



tl llui'l. nueleo-albiimiiis probably 

 at in, 90 



Syntonin, chemistry of, 16 

 preparation of. 17 

 ,, definition of, 36, note 



Taurin, 142 



Tauro-curliamic acid, 143 

 Taurocholic acid, preparation of, 211 



,, precipitation of proteids by 



means of, 212 



Tea, traces of xanthin present in, 175 

 ,, hypoxanthin present in, 179 



:u. inn's crystals (liiumin), 235 

 Tendons, inucin of the, 78 

 Tetronerythrin, sources of, 267 



, its relations to xanthin, 174, 184 

 Thfobroma cacao, its alkaloidal constit- 

 uent, 184 

 Theobromin, its relations to xantliin. 



174, 184 



,, isomerof paraxanthin, 177 



,, an excretiouary product of 



plants, 185 

 Theophyllin, its relations to xanthin, 



174, 178, 184 

 Timml meat-. iH>ssible development of 



nines in, 205 

 Tomla urea, enzyme developed by, 70 



), presence of copper in plumage 



. 



iivl vinyl -ammonium hydroxide, 

 }:;<; 



TrojKeolins, classification of acid- and 

 alkali-albumin by means of the, 18 



.11 on lil>i in, 34 

 ,, its action on proteids, 36, 38 



preparations oi. 



logcn. tin- zymogen of trypsin, 64 

 Tanldn, 101 

 Tnracin 

 Tvr.-in, formation of, in clot ting of casein, 



result of decomposition of 



proteids, 40 

 ,, a product of decomposition of 



mucin, 79 



,, constitution of, 189 

 ,, preparation of, 190 



II >lfinann'8 traction for, 191 



rmhili.-.tl r,, r .|, mucin ..f the, 79 

 Urea, 155-164 



average daily excretion of, 165 

 ;i of, 158 



synthe*M of. }'.< 

 n'itrat- <>f. I.".-: 

 oxalatc of, l.'-7 



l&S 





Urea, det< 



it-s proba 



180-162 



its relation 



!'! '.-: nnsnt, h 

 I'rcas, sub.-,::- .- 

 Uric acid, 164-169 

 salts of, 188 



lietnical constitution of. 188 

 synthesis of, 169 

 its relations to urea, 169-171 

 Urinary in 

 Urine, fermentative changes i 



iathological changVs in, 71, 10J, 

 108, 130, 208, note, 206, 268. 



presence of kn-atinin in, 143 



,, urea the chief nitrogenous con* 



stitiient of, 155 



,, deterinim: ^n in. 159 



,, sulpho-cyanates present in, 183 



phi-nyl-sulphuric n.-i.i in, 194 

 ,, pyrocatechm in, 198 

 ,, pistil- n!- oi, -j;,i- 

 Urobilin, it-, identity with li\dn>l>iliru- 



bin, 



,, prejNiration of, 

 s|.-.-tra of, 253 

 n." 

 



..iv mMatt t 

 Urochromi. 

 Uroerythrin. 

 Uroha-matin, 255 

 Urohamato|Mirpliyrin, 255 



Val i 118 



Van't Hoff-Le Bel hypothesis of 



ism. 

 Vegetable alkaloids, their analogy Mitli 



ptomaines, 204, 205 

 tissues, ai: ud in. 172 



-.11 found in. 



,, ,. occurrence of jru n in : 



, . urr. :i .'... 



Visual.purple.2til 



action of light and rrsgrnts 



. 

 Vitrllin, chemistry and preparation of, 28 



\Y ; 



.'- 



tiofsolabl* 



r'.r xsntluti 

 rkr.-atii.il.. 117 



i pnnip. thr. 173-186 



