( 29S ) 



For this purpofe, I firft examined the leaf of tlie young plant, in 

 that part where it was fo thick as to be opakc, and immediately I faw 

 in it three dirtin6l veilels of the like fpiral or twifted form, as I have 

 before mentioned to have feen in tlie root. This ei^.quiry I profe- 

 cuted as far as the extremity of the leaf, where I faw a fmall vellel 

 of the like kind, and fo diftinclly, that I could count every fingle 

 fold or fpiral turning in it. 



Since it now appears plain to us, that provident Nature forms all 

 the veflels of this tree in fo perfect a manner, that the fmall ones in a 

 young plant in the feed, are as plainly to be feen as thofe in the 

 wood at full growth, which we may jullly conclude is the cafe in all. 

 feeds, however minute ; we are not to wonder that the fmalleft of any 

 animal which we view by the microlcope, is as completely provided 

 with all its parts as when it is grown larger. In a word, the fartlier 

 we endeavour to dive into the hidden works of Nature, the more wo 

 ought to be convinced, that we never can arrive at her farthefl receffes, 

 though many perfons, when making ufe of a good microlcope^ 

 weakly fuppofe, that nothing is out of the reach of their obfcrvation.. 





