The Preface. v 



ther refearches by variety of Experi- 

 7ne?its. 



As the Art ofPhyftck has of late years 

 been much improved by a greater know- 

 ledge of the ani7nal ceco?W7?iy ; fo doubt- 

 lefs a farther infight into the vegetable 

 ceconomy mujl needs proportionably im- 

 prove our skill in Agriculture and Gar- 

 denings which gives me reafon to hope, 

 that inquiries of this kind will be accept- 

 able to many, who are intent upo?t im- 

 proving thofe innocent, delightful, a7id 

 benefcial Arts : Since they cannot be in- 

 fenfble, that the 7710ft ratwial groimd 

 for Succefs i7i this laudable Purfuit tnt ft 

 arifefro7n a greater infight into the na- 

 ture of Plants. 



Finding by many Expe7~i7ne7tts i7i the 



ffth chapter, that the Air is plentifully 



infpired by Vegetables, not only at their 



roots, but alfo thro fever al parts of their 



trunks a7id branches ; this put 77te upon 



7naki7i<y 



o 



