376 The ConchJionJ 



only pafs in little ftreams : The like contri- 

 vance would probably alfo be of good fervice 

 to purify gradually the thick rancid fumes 

 which arife from the dung of hot beds, and 

 are often very deftructive of the tender plants: 

 This is to imitate Nature, which, while (he 

 provides for the defence of living creatures 

 againft the cold, by a good covering of Hair, 

 Wool, or Feathers, at the fame time (he takes 

 care that the air may have admittance thro' 

 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 

 touch'd upon a few of the moft obvious in- 

 ftances, wherein thefe kind of refearches may 

 poffibly be of fervice in giving us ufeful hints 

 in the culture of plants : Tho' I am very fen- 

 fible, that it is from long experience chiefly 

 that we are to expect the moft certain rules of 

 practice $ yet it is withal to be remembred, that 

 the likelieft method to enable us to make the 

 moft judicious obfervatiohs, 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. 



