Of Vegetation. 345 



That the force of dilating fap and air, in- 

 cluded in the innumerable little veficles of 

 young tender (hoots and leaves, is abundantly 

 fufficient for the extending of {hoots, and ex- 

 panding of leaves, we have evident proof 

 from the great force we find in the fap of 

 the Vine, chap. 3d. and from the vaft force, 

 with which infinuattng moifture expanded 

 the Peafc. Experiment 32. we fee the great 

 power of expanding water, when heated in 

 the engine to raife water by fire : And wa- 

 ter with air and other aftive particles in ca- 

 pillary tubes, and innumerable fmall veficles, 

 do doubtlefs ad with a great force, tho* ex- 

 panded with no more heat than what the 

 Sun's warmth gives them. 



And thus we fee that nature exerts a con- 

 fiderable, tho'fecret and filent power, in car- 

 rying on all her productions $ which demon- 

 strates the wifdomof the Author of nature 

 in giving fuch due proportion and direction 

 to thefe powers, that they uniformly con- 

 cur to the production and perfc&ion of na- 

 tural Beings i whereas were fuch powers 

 under no guidance, they mud neceffarily 

 produce a Chaos y inftead of that regular and 

 beautiful fyftem of nature which we fte- 

 3 We 



