INDEX. 



411 



PAGE. 



Superphosphate, mineral, ma- 



mifactiireof 153 

 , , products 



evolved d\\- 

 ring manu- 

 facture of. . 155 

 ,, "reverted" 



155, 174 



Sylvine, composition of ... 165 

 Sylvinite 165, 167 



Talbot's method of dephos- 

 phorising iron ... ... 164 



Talc, composition of ... ... 41 



, , occiirrence of magnesium 



as 15 



Talose 194 



Tanners' refuse, amounts of 



chief constituents 118 

 ,, refuse as litter ... 118 

 Tannic acid, composition and 



properties of ... 207 

 gallo-acid, constitution 



of .. 207 



Tannin, function of in plants 207 

 Tartaric acid, constitution of 206 

 Tatlock's method of determi- 

 nation of potash ... ... 98 



Taurine, prodiict of hydrolysis 

 of taurocholic ... ... 273 



Taurocholic, hydrolysis of ... 273 

 , , properties of ... 273 



Terpenes, chief properties of 209 

 ,, subdivisions of the 



class of 208 



Theobromine, constitution of 220 

 Thomas-Gilchrist process of 

 steel manufacture .. ... 160 



Thomas-Gilchrist process, 



analysis of iron and steel by 161 

 ' ' Thomas phosphate meal "... 163 

 " Thomas phosphate meal," 

 analysis of ... ... ... 163 



Timothy grass, changes oc- 

 curring during ripening of 245 

 Titanium, occiirrence of .., 17 

 ,, relative abundance 



of 19 



Tobacco smoke as an insecticide 377 

 Trisaccharides, the group of 196 

 Transpiration in plants, pro- 

 cess of ... 230 

 ,, in plants, action 



on rise of sap 237 

 ,, in plants, ac- 

 tivity of, con- 

 ditions affect- 

 ing 237 



Transpiration inplants,amount 



of water lost by 237 



Trypsin, action of in the in- 

 testines ... ... ... 271 



Trypsinogen ... ... ... 271 



Turnips,manures most useful to 242 

 ,, plant food of ... 242 



, , sugar in ... ... 242 



,, water in, amount of 242 

 Turpentine, crude, composi- 

 tion of .. 211 



Tyrosine, composition and oc- 

 currence of ... ... ... 218 



Tyrosin, formation from pro- 



teids 271 



solubility of ... 271 



Ulsch's method of determina- 

 tion of nitrogen . . ... 178 

 Urea, calorific power of ... 5 

 , , fermentation of ... 122 

 in the blood ... 259,276 



Uric acid 259 



,, constitution of 220, 296 

 , , in guano ... ... 130 



, , properties of ... 276 

 Urine, causes of variation of 276 

 ,, derivatives of benzene 



occurring in ... 277 



, , formation of ... ... 276 



, , specific gravity of ... 276 



Vegetable albumens ... 

 , , album i nates 

 ,, globulins ... 

 ,, peptones ... 

 ,, proteids 

 ,, proteoses .. 



Vegetation as agent in soil 

 formation 



Vernal grass, occurrence of 

 coumarin in ... 



" Viscose," preparation of .. 



Vitellin, analysis of ... 



Vi vianite, composition of ... 



214 

 214 

 214 

 214 

 214 

 214 



47 



248 



192 



214 



13 



Water as agent in soil forma- 

 tion 44 



,, determination of in 



crops 250 



,, in the soil, see "Soil" 72 

 ,, ratio of to dry matter 



in rations ... . . 297 



Waxes, constitution of ... 205 

 ., properties of... ... 206 



" Weende" method of analy- 

 sing crops . . . 250 

 ,, method, objections to 254 



