360 



INDEX. 



animal and ve^table substances, 46, 47. — Magnesian earths, not 

 very fertile, 72, 73. 



Electricity, an imponderable fluid, 8 et seq. — Its influence upon 

 vegetation, ibid. 



Encouragement which the government ought to grant to French 

 . agriculture, 232. — Useful associations, ibid. 



Estates, if the division of them be beneficial or injurious, 197. — 

 Where it should stop, 225. — Of large and small estates, 224. — Ad- 

 vantages resulting from the liberty of acquiring landed property, ibid. 



Exchanges, xxv. 



F. 



Fallow lands, causes which have perpetuated them, 117. — Preju- 

 dicial to the interests of agriculture, 117, 118. 



Fermentation, general views, 238, 239. — Alcoholic, 239. — Of 

 leaven, ferment, or yeast, 240. — Of the must of the grape, 241. — 

 Improvement in the processes for making wine, 243, 244. — Fermen- 

 tation of grains, 248. — Of potatoes, 248, 249. — Of the mash of 

 grapes, 275. — Of apples and pears, 276. — Of cherries and mazzards, 

 277. — Of the berries of the service-tree, 278. — Of plums and figs, 

 ibid. — Of juniper berries, iJ)id. — Of the sap of trees, 279. — Of 

 barley and rye, ibid, et seq. 



Fibre, vegetable, analysis of it, 149. — Use made of it in manufac- 

 tures, 150. — Methods of reducing it to charcoal, 152 et seq. — Uses 

 of charcoal, 153, 154. 



Filtration of water, 273. 



Flax, the soaking of it in water, 150. — Opinions respecting the ma- 

 chines substituted for the action of water, ibid. 



Flints, or pebbles, effect of mixing them with arable soils, 40. 



Fluids, contained in the atmosphere, 2, 8, et seq. 



Forests, means of encouraging the planting and preservation of 

 them, xxiv. 



Fructification, 95, 96. 



Fruits, 86. — Ripening of them, 87. — Mode of preserving them,tbid. 

 — When ripe, yield carbonic acid, 87, 88. 



Gas, carbonic acid. See Acid. — Azote and oxygen, 1, 2. 



Gelatine, its decomposition in earth, its solution in water, 59. — 

 Abounds in the horns and hoofs of animals, 60. 



Germination, 77. 



Gluten, a vegeto-animal principle, 154, 155. — Its existence and pro- 

 portions in wheat, 166. — Its influence upon clarification, 159. 



