INDEX. 



F 



Flax, on rotting, - - - - ^ 9 



husbandry of Ireland, see appendix. - - 8 



Flies and insects injurious to fruit, destro}'ed by salt 



and water, - - . _ . . 322 



Flour, injured by too great refining, _ _ _ 228 

 Food, sour, grateful to swine, - . - _ 229 



Forest trees, rotation and succession of them, instances 



proofs of, 41 & seq. 296-7 300-1 & seq. 



Fothergill, A. on smut, mildew and blight in wheat, 65 



Frogs and Toads, found alive in blocks of marble and 

 granite, are additional proofs of the 

 circulation of atmospheric air thro' 

 all matter, - - - - 204 



Fruit, insects destructive to it described. Salt water 



recommended to banish or kill them, - 319,322 

 Mercurial ointment and spirits of turpentine to de- 

 sti-oy worms or eggs of insects deposited in fruit, 187" 

 Crude mercury for the same purpose, - 186 



Trees, best mode to plant, _ - _ 225 



G 

 Grain, selections from plants the most productive, and 

 of the best quality, use and advantages of them 

 Appendix, - - - - - -,17 



Sir Joseph Banks's opinion that light and shri- 

 velled grain is proper for seed corn, doubted, 32 

 Grubs destroyed by salt and water, - - 172 

 Gypsum, on, - - - ---156 



its origin as applied to agriculture, 158-59-60-61 

 Chemical account of its operation ; and quan- 

 tity required for an acre, - - - 169 

 does not injure land by repetition, - 157 

 useful for leguminous crops, ... 162 

 agrees perfectly with limed lands, ashes, rot- 

 ted dung and compost, giving to them great 

 activity, - - - - - 158, 164 



