[ 304 ] 



philofophy ;— the efFe<^s of the air with regard to 

 vegetation, and the nature of different earths and 

 manures, after the manner of the Dodors Home, 



FORDYCE, AiNSLIE, PrIESTLEY, &C. 



They fhould alfo be in(lru6led in the principles 

 of Mechanics, efpecially that part which relates to 

 Hydraulics, it being of principal utility in draining 

 and other modes of improving eftates, 



Thefe are circumflances from which many of the 

 capital improvements lately made, in a great mea- 

 fure, originated. They were indeed confidered of 

 principal importance by Sir William Petty, * one 

 * of the greateft men of that or any other age,** 

 who recommends them with earneflnefs, for reafons 

 highly worthy of himfelf, and which will be men- 

 tioned hereafter. 



Having gained fome knowledge of Agriculture, 

 they will read the works of the ancient agricultural 

 writers with improvement and pleafure^ a circum- 

 fiance which will much expedite the knowledge of 

 the languages. For without excluding other profe 

 authors, may I not venture to aflert, that the an- 

 cient writers on huA^andry arc, from the nature of 

 their fubjedl and their claflical ftile, as proper (or 



• Biog. Britan. Article Boyle. 



'^ ' ■ ^ . young 



