Vegetable Statkku 6$ 



may reafonably fuppofe, from the vaft force 

 of confined vapor in zyEoltpiles, in the di- 

 gefter of bones, and the engine to raife wa- 

 ter by fire. 



If plants were not in this manner fup- 

 plied with moifture , it were impoffible for 

 them to fubfift, under the fcorching heats , 

 within the tropicks, where they have no 

 rain for many months together : For tho' 

 the dews are much greater there, than in 

 thefe more Northern climates 5 yet doubtlefs 

 where the heat fo much exceeds ours, the 

 whole quantity evaporated in a day there* 

 does as far exceed the quantity that falls 

 by night in dew, as the quantity evaporat- 

 ed here in a fummer's day, is found to ex- 

 ceed the quantity of dew which falls in the 

 night. But the dew, which falls in a hot 

 fummer feafon, cannot poffibly be of any 

 benefit to the roots of trees; becaufe it is 

 remanded back from the earth, by the fol- 

 lowing day's heat, before fo fmall a quanti- 

 ty of moifture can have foaked to any con« 

 fiderable depth. The greaf benefit there- 

 fore of dew, in hot weather, muft be, by- 

 being plentifully imbibed into vegetables 3 

 thereby not only refrefhing them for the 

 F prefent, 



