270 INDEX. 



Excrements of horned cattle, . . . 194 



Excrements of the horse, . . . .194 



Excrements of the hog, . . . . 195 



Excrements of sheep, . . . .195 



Excrements of birds, . . . . 195 

 Epsom salts as manure, .... 205 



Earthy manures, ..... 206 



Fire damp, . . . . . 49 



Fermentation, . . . . .69 



Fermentation, vinous, . 69 



Fermentation, acetous . . . .70 



Fault, 76 



Formation, . . . . . .76 



Fossil, ...... 76 



Feldspar, composition of . . .87 



Flower, . . . . . . 97 



Filament, ...... 99 



Fruit, ...... 100 



Fibrils, . . . . . . 103 



Fusiform roots, . . . . . 104 



Fibrous roots, . . . . .104 



Faciculated roots, . . . . 104 



Floating roots, . . . . . .105 



Flowers, terminal . . . . 118 



Flowers, axillary . . . . .118 



Flower, solitary . . . . . 119 



Forests, their influence on climate and the fall of rain, 134 



Frost, . . . * . . .136 



Frost, cause of . . . . ^137 



Fogs, . . . . . . ~ 138 



Fire balls, ..... 148 



Fallowing, . . . . . .182 



Fallowing, benefits of . . . 183 



Flesh as manure, . . . . . 192 



Fat of animals as manure, . . . 192 



Farm-yard manure, . . . . .199 



Force defined, ..... 233 



Friction, . . . . .237 



