( 202 ) 



the formation of it could be feen more accurately, I placed it, by 

 itfelf, before a microfcope of greater magnifying power, and caufed 

 a drawing of it to be made, in order to Ihew the perfection exhi- 

 bited in fo minute, and to us fo defpicable, a creature. Fig. 33, A B, 

 reprefents this eye as {een in the put-ofF fkin, and it appears to be 

 compofed of a great number of diftindl eyes or optical organs. 



After this I opened the bodies of others of thefe Animalcules, in 

 order to fee whether the young ones within them lliewed any ligns 

 of life, and I found one of the young Animalcules, in whofe body 

 I could not only fee the motions of the inteftines, but alfo its feet to 

 move, though they lay regularly placed on the fides of its body. 



On the 6th or 7th of June, I faw that many of the Animalcules, 

 which had been brought forth on the 2lft of May, were changed 

 into flies, and feme of the leaves on the goofeberry branches where- 

 on I kept them began to wither. 



Until the 5 th of June, I had often fought for thefe Animalcules 

 on my cherry, peach, and plum trees, but found none : on the 7 th 

 of June, upon making a farther fearch, I found fome of them on 

 fourteen different branches of the cherry trees; they were not green 

 but blackifh, the young ones round about them were of a dark co- 

 lour, and in one leaf I faw five Animalcules, full grown, which 

 had one hundred young ones round about them. 



I opened many of thefe Animalcules, and took many young ones 

 out of them of the fame kind as before mentioned, but thefe laft 

 young ones were of a dark colour. I alfo opened fome Animalcules 

 ly^hich feemed to be half grown, and found in them many imperfedly 

 formed young ones, and, to the befi: of my judgment, 1 counted lixty 

 in the body of one of them, befides which there were doubtlefs many 

 which I could not difcern ; the largefl: of thefe were of a green colour. 



I did intend here to have finiflied my obfervations, but feeing 

 that thefe laft mentioned Animalcules were only on the cherry trees, 

 and perceiving fome little differences in their formation from thofe 

 I have befoje mentioned, I determined to try whether thefe lafl 



