( 170 ) 



ning of the plant, magnified : EF D, are the parts or points from 

 whence iiot only three dirtinil roots will grow, but they are alfo the 

 be^^-innings of three feveral I'pires or flalks of \\heat ; for tlie minute 

 protuberances which appear at FA, and C D, are two diflinift j^lants : 

 fo that, from every grain of Wheat (which is well worthy of obferva- 

 tion) there will arife, not inereU' a fn.^le ftalk,b' it three diftinft ones, 

 which are formed in the feed itfeif And as, when fpeaking of arti- 

 chokes, we call the principal or uppennofl: fruit, tlie parent artichoke, 

 and the others chicken artichokes, fo, in the inftance before us, we 

 may properly name the uppeimoft plani, which appears at B, and 

 whofe root projecSls lower than all tlie reft at E, the pavent plant, and 

 the two fmaller ones, at F A, and D C, the t\\\j chickciis or fuckers. 



In ojder to form a computation uf the proportionable iize of thefe 

 firft formed pants, I placed them befide an entire g.ain, which I 

 judged to be four times their fi^e both in length and tiiiiknefs, whence 

 it follows, that each grain of Wheat is fixty-four times larger 

 than the three feveral young plants formed in it, and which are to 

 receive nouriflnnent from it, in the beginning of their vegetiition. 



I cut off a pieca of this young plant, by a tranverfe fe lion, acrofs 

 the part where the three vegetative principles I have defcribed arefitu- 

 ated, or at the place in the hgure from F to D, only to Ihew how, and 

 in what order, the roots (or that whith is the place or fource of tlie 

 roots and plants in this fee. I) do lie in refpe6l of each other ; and alio, 

 to point out the multitudes of vefiels formed in them. 



In fig. 2. ABC, is the firft or outward membrane or covering, w hich 

 enclofes both the plant, and the whole circumference of the grain of 

 Wheat, and iscompofed of notliing but veflels extending length wile, 

 and which, being cut tranfverfely, appear in this membrane as tliey 

 are Ihewn in the figure, particularly at B, where may be feen a few 

 of thefe velleJs, prefenting part of their fides to the eye. The fecond 

 membrane or covering, is in part fliewn at D E F. 



