400 



INDEX. 



Sulphates — continued. 



Yield sulphur, 02 

 Sulphur, crystallized, dimorphous, 



proportion of, to nitrogen in 



plants, 62 

 Source of, in plants, 58 

 Sulphuric acid, action of, on soil*, 



187 

 Sulphurous acid arrests decay, 341 

 Synaptas, 388 



Tables of Hessian and English 



weights and measures, 392 

 Tannic acid, 36 

 Tartaric acid, 36 



Converted into sugar, 37 



In wine, 298 

 Teltow parsnip, 30 

 Thenard, his experiments on yeast, 



290 

 Tin, action on nitric acid, 268 

 Tobacco juice, contains ammonia, 47 



Nitric acid, 48 



In Virginia, 113 

 Transformation, by heat, 280 



Chemical, 265 



Of acetic acid, 280 



Of carbonic acid, 106 



Of meconic acid, 280 



Of bodies containing nitrogen, 

 - 282 



Of bodies destitute of nitrogen, 

 280 



Results of, 31 



Of wood, 281 



Of cyanic acid, 284 



Of cyanogen, 285 



Of gluten, 311 

 Transplantation, effect of, 97 

 Trees, diseases of, 102 



Require alkalies, 115 



U. 

 Ulmin, 5 

 Urea, converted into carbonate of 



ammonia, 48 

 Urine, contains nitrogen, 48 



Its use as manure, 47 



Of men, 173 



Of horses, 169 



Human, analysis of, 173 



Of cows, 169 



V. 



Vaccination, its effect, 382 



Vegetable albumen, 48 



Mould, always contains carbon- 

 ate of ammonia, 96 



Vegetation, tropical, 161 



Vesuvius, fertile soil of, 112 



Vines, juice of, yields ammonia, 46 



Vinous fermentation, 311 



Virginia, early products of its soils, 

 114 



Virus, of small pox, 382 

 Vaccine, 3S2 



Vital principle, how balanced in 

 the blood, 371 



W. 

 Water, carbonic acid of, absorbed, 

 17 



Decomposes rocks, 113 



Composition of, 36 



Dissolves mould, 344 



Plants, their action upon, 26 



Rain, contains ammonia, 43 



required by gypsum, 55 



Salt, analysis of, 79 

 Wavelite, 117 

 Wheat, exhausts, 114 



Gluten of, 46 



Why it does not thrive on cer- 

 tain soils, 115 



In Virginia, 114 



Red, 143 



White, 182 

 Willows, growth of, 98 

 Wine, effect of gluten upon, 318 



Fermentation of, 317 



Properties of, 318 



Substances in, 313 



Taste and smell, 314 



Varieties of, ib. 

 Woad, decomposition of, 294 

 Wood, decayed, combustion of, 342 



Absorbs ammonia, 56 



Analysis of, 24 



Conversion of, into humus, 339 



Decay of, 338 



Requires air, ib. 



Decomposition of, 266, 295 



Effect of moisture and air on, 338 



Elements of, 339 



Formation of, 102 



Source of its carbon, 12 



Transformation of, 881 



