( 259 ) 



ainined and explained by olliers. And, thougli I determined, if I ihculd 

 obierve anything particular in tliat part of the iubje6l, to commit my 

 remarks to writing, yet, my principal obje6l was, to inveftigate the 

 formation of the very fmalleft flefliy mufcles, and to examine whe- 

 ther any thing might be found therein worthy of note. 



For this purpofe, I took the heart of a flieep, but, with all my 

 pains, I could not fucceed in Separating or taking off' any flefny 

 mulde like that defcribed at fig. i^, NOPO, for, in the operation, 

 it was fo torn, and, fo many of the adjoining parts adhered to it, 

 that I could not then fatisfy niyfelf as to the true fonnation of fuch 

 mufcle ; nor with regard to the union or connedlion between it and 

 tlie adjoining parts. 



After this, I tried the heart of an ox, cutting off many pieces, and 

 contriving every poffible means I could devife, to feparate a fmall 

 ilrip or oblong particle from the adjoining parts, but all to no pur- 

 pofe; and, at length, I found, that thefe flefliy particles v/ere fo 

 linked together, that it would be impoflible to fever them without 

 breaking. 



This concatenaition, or linking together of the flefliy parts, (wliich 

 parts, in treating of the tongue, I have called minute flefliy mufcles) 

 in the fubftance of the heart, is of fuch a nature, that, at firfl, 1 

 defpaired of being able to reprefent it to the eye by any figure or 

 drawing ; but at lengtli, I fo far fucceeded, as to exhibit a reprefen- 

 tation thereof to the reader. 



In thefe exj:;eriments, I tried the heart of a duck, in order to fee 

 whether its i'ormation, and particularly this union of the parts, agreed 

 with that of an ox ; and I found, that the flelhy parts in the duck's 

 lieart, were linked together in the fame manner as in that of the ox ; 

 and not only fo, but that I could better give a reprefentation of fuch 

 concatenation or linking, from the heart of the duck, than from any 

 of the other fubjedls I had examined : and thereupon, I delivered to 



