( 296 ) 



Teprefents the two leaves which are fliewn in Jig. 28, at TV W, 

 and mjig. '2Q, at Y Z A. 



And now I was not only convinced that, in difle6ling the feed, I 

 had formed a true judgment as to the different parts of it, but . 

 here I plainly faw tlie multitudes of vcflels of which the leaves in 

 great part were compofed ; and of which in the two former fub- 

 je6ts, pictured at //o-. 28 and 29, I had^only feen, as it were, the 

 Ihadow. I could moreover dillinclly fee a great number of valves 

 or joints in each veflel or tube, as well in the leaves, as in the llalk 

 and root, according to what we fee in the formation of larger 

 plants. 



While I was preparing this object for the limner to make a 

 drawing of the root, as fliewn mJig. 30, at MON, I fawfo many 

 of the grains of fand adhering to it, that I was obliged to ufe feveral 

 expedients to clear them away ; and in doing this, many of the 

 fmall branchings from the root were broken, by reafon that they 

 had twined moll clofely round the grains of fand in a manner won- 

 derful to behold ; and if all the ramifications which I faw, had 

 been reprefented in the figure, the number of radicles branching 

 from the larger root, M O N, would have been twice as many as 

 here fliewn : and what is more, in many of thefe fmall radicles, 

 might be {ten their excjuilitely minute velfels. 



The larger root, fg. 30, M ON, in a very little time became fo 

 dried, that in order to make a true drawing of it, and to reprefent 

 its velfels properly, I found it neceflary to place five or fix diffe- 

 rent plants before the microfcope one after another. 



Now fince we fee that in fo iew days time, this fmall feed will 

 grow to a perfedl plant, and moreover confider, that the fame per- 

 fedlion in its parts which we obferve in the plant, is contained in 

 the feed, though hidden from oui^ eyes, we are not to wonder that 

 in a bird's egg, duly impregnated, a young bird fluill in a fort- 

 night's fpace or lefs, be completely formed, equal in fize to the egg 

 itfelf 



