( 272 ) 



pretty fliape of thefe fliells, I thought it would not be amifs to give 

 a drawing of one of them : this is to be feen at jig. 37, ABC, as 

 viewed through the microfcope. 



I next examined the intertines of the Shrimp, to fee whetlier I 

 could there difcoA'er any of thofe fmall bones or fliells, but finding 

 none, I began to confukr that, perhaps, when Shrimps have kept 

 thofe Hiells, or other hard fubftances, which cannot be digelled or 

 ground to pieces by the a6tion of the ftomach, fo long as that all 

 the niitrive particles which can pafs into the inteftines are extract- 

 ed, w hether they do not throw up the remainder, and void it at 

 their mouths. 



The paflage out of the flomach was provided with certain organs, 

 like teeth, for the purpofe (as I think) of grinding the food a fe- 

 cond time, before tranfmitting it to the inteftines. 



I have often refle6led on the great number of eggs which Shrimps 

 are accustomed to carry, faftened to thofe limbs or organs placed on 

 the lower parts of their bodies, and which are commonly called their 

 feet ; and efpecially when I conlldered that thofe eggs, w^hich arc 

 by fome means fixed on that part, did not feem to grow any larger, 

 and that all thofe which I faw were of the fame fize, from whence 

 I could not fatisfy myfelf in the belief that thofe eggs had been 

 formed in that place. 



Hereupon I began to difleA the belly of the Shrimp, which is in 

 that part commonly thought to be its head, and then I faw that the 

 eggs were chiefly placed there, and the remainder of them next the 

 back, where the body of the Shrimp is thickeft. 



The eggs which I took out of the bodies of Shrimps were not of 

 equal fize in all, but fome larger than others : and beween thofe 

 eggs which had been put forth from the Shrimp's body, and were 

 fixed to the lower part of the body, and tlie largeft of thofe which 

 ftill remained within the body, I could not difcover any ditference 

 in point of fize. 



