Microscopical Essays* $35 



The third, V, begins at the third divifion, originating partly 

 at the (kin, partly at the junction of the mufcles B of the fecond 

 and third ring. It directs itfelf obliquely towards the belly, 

 meeting it near the third fpiraculum ; branching from thence, it 

 forms the oblique mufcles of this vifcera. 



The thin long mufcle 0, which is at the fubdivifion of the laft 

 ring, and covers the anterior infertion of the large mufcle (a), 

 where the ring terminates, (il eft fans paire) it is fingle ; it begins 

 at one extremity of the mufcle c, at the fore part of the ring, 

 runs along the fubdivifion, round the belly of the caterpillar, 

 and fmifties on the other fide, at the extremity of a fimilar mufcle 



c. 



Explanation of Fig. 2, Plate XII. 



Preparation. 



All the dorfal mufcles, thirty-five in number, were taken out, 

 as well as the feven lateral ones which have been defcribed in the 

 preceding figure. 



All the {trait mufcles of the belly were alfo taken away, as well 

 as the mufcular roots c, and the ends of the gaftric mufcles c, 

 which are at the third and fourth divifion. 



At the fecond divifion the middle of the mufcle $ was removed, 

 the extremities only being left to point out where it was inferted. 



The 



