37 6 The Conclufion. 



bably alio be of good fervice to purify- 

 gradually the thick rancid fumes which arife 

 from the dung of hot beds, and are often 

 very deftruftive of the tender plants: This is 

 to imitate nature, which while fhe provides 

 for the defence of living creatures againft 

 the cold, by a good covering of Hair, Wool, 

 or Feathers, at the fame time fhe takes care 

 that the air may have admittance through 

 innumerable narrow meanders in fuch quan= 

 tities as may be fufficient to carry off the 

 perfpiring matter. 



I have here, and as occafion offered under 

 feveral of the foregoing Experiments, only 

 touched upon a few of the moft obvious 

 inftances, wherein thefe kind of refearches 

 may poflibly be of fervice in giving us ufe- 

 fui hints in the culture of plants : Tho' I 

 am very fenfible, that it is from long ex- 

 perience chiefly that we are to exped the 

 moft certain rules of practice, yet it is with- 

 al to be remembred, that the likelieft method 

 to enable us to make the moft judicious 

 obfervations, and to put us upon the moft 

 probable means of improving any art, is to 

 get the beft infight we can into the nature 

 and properties of thofe things which we are 

 defirous to cultivate and improve. 

 FINIS, 



