AGRICULTURAL TEXT-BOOK. 



oGmulited experience, its application is empirical art; but if it be expe- 

 riauce reasoned upon and brought under general principles, it assume* 

 a higher character, and becomes a scientific art. 



5. The following are usually considered the Sciences which 

 are naturally included in the Art of Agriculture : I. Matlt#~ 

 maiical Science: (a,) arithmetic; (b,) algebra; (c,) geometry ; 

 (d,) mechanics ; (e,) surveying ; (fj levelling ; (gj stereome 

 try, (the measuring of solid bodies,) (h,) linear drawing. II. 

 Physical and Natural Sciences: (a,) physics; (b,) meteov- 

 dogy ; (cj mineral chemistry ; (d,) mineralogy ; (e,) geology ; 

 (ft) botany. III. Technological Sciences: (a,) organic chem 

 istry ; (b,) scientific agriculture ; (c,) arboriculture ; (d,) sylvi 

 culture ; (e,) vegetable and animal physiology ; (f,) veterinary 

 art; (g,) zoology; (h,) equitation. IV. Zoological Sciences: 

 (a,) rural architecture ; (b,) forest economy ; (c,) book-keeping ; 

 (djj rural economy; (e,) rural law. Each of these, again, ia 

 divisible into several sub-divisions; and the list may be still 

 further added to with practical advantage. 



6* While a knowledge of all these sciences is necessary to th* 

 thoroughly educated farmer, only a part of them is included in 

 what is commonly termed practical agriculture. Of this latter 

 portion, meteorology, chemistry, geology, mineralogy and botany, 

 are usually taught by themselves ; leaving field-work, arboricul 

 ture, animal physiology, zoology, and veterinary art in a clap* 

 by themselves. To these last, the following pages will be de- 

 Totecl. It must, however, be observed, that so closely are the 

 majority of these sciences interwoven in forming the agricultural 

 art, that it is impossible entirely to disconnect the one from the 

 other. This is especially the case with chemistry and botany : 

 a knowledge of the principles of which must bo considered aa 

 absolutely essential, and which, together with certain depart 

 ments of geology, must be frequently referred to. 



7. The farmer is a manufacturer. His art converts the soil and air 

 into grain, meat, wool, oil, and other substances. He creates nothing : 



