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But in feveral places I faw a great number of faline particles lying 

 near together, of a more regular fliape, and having fix fides : b\it, 

 with all the attention T could befiow, I did not difcover a fingle par- 

 ticle in crab's blood refembling the figiire of our common fait ; fo 

 that it is plain, to me, that the fea fait does not enter into the fub- 

 ftance of the bodies of filhes, 



I have caufed a drawing to be made of this crab, in order to 

 fhew the fpecies wherein I faw the circulation performed in fo 

 many veflels, and which is well worthy the attention of the curious. 



Fig. 7, ABCDEF, reprefents this crab, and at AB and EF 

 are (hewn the two external joints of each hind foot, in which 

 I have faid the circulation can be feen in fo great a number of 

 fmall veflels. 



I then examined the parts which to the naked eye feem hairy, 

 and with which hairs the joints A B and E F are covered, in order 

 if poffible to difcover the circulation there ; but the veflels compo- 

 fing thele hairy parts were fo minute and flender, that not a fingle 

 globule of blood could pafs through them, and confequently it was 

 impoffible for me to fee the circulation in thofe parts. 



