Mi e r- os-co ptc al Essays* 



The third Ring 



Prefents four dorfal mufcles, C, D, E, F. The firft dorfaf 

 mufcle, C, is inferted at the third divifion under the mufcles 0 and cl 3 

 where it communicates, by means of fome fibres, with the mufcle 

 f of the fecond ring ; from thence it proceeds obliquely towards 

 the intermediate fuperior line, and is fixed at the fourth divifion,. 



As foon as C is retrenched, the mufcle D is feen $ this grows- 

 wider from the anterior extremity ; it lies in a contrary directions 

 to the mufcle C, and is inferted into the third and fourth 1 

 divifions. - 



The mufcle E lies in the fame direction as the mufcle C, but 

 not fo obliquely ; the lower infertion is at the fourth divifion, the 

 other is at the third, immediately under C- 



The mufcle F is nearly parallel to D, which joins to it; the 

 firft infertion is vifible, the other is at the fourth divifion, under 

 the mufcles E and G» 



There are no lateral mufcles to be defcribed in this ring ? 

 The eight following Rings* 



There are only two dorfal mufcles^ and no lateral ones, to be 

 defcribed in thefe rings. 



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