Microscopical Essays. 



349 



Fig. 7, Plate XLL 



Is an outline of the head, magnified considerably more than in 

 the laft figures, exhibiting the nerves as leen from the under part. 



Excepting in two or three nerves (and the fe maybe eafily known, 

 becaufe each nerve of the fame pair is marked with a fimilar 

 letter), only one nerve of each pair is drawn, as a greater number 

 would have occafioned much confufion. 



The nerves of the firft ganglion of the neck are defigned by 

 capital letters. 



The nerves of the ganglion a of the head are diftinguiflied by 

 Roman letters. 



The nerves of the fmall ganglion by Greek characters. 



Thofe of the frontal ganglion, except one, by numbers. 



A general Idea of the interior Parts of the 



Caterpillar. 



Having defcribed fo many of the parts as to evince the ama- 

 zing wonders that are difplayed in this infect, I proceed to give a 

 more particular account of the nature of fome of thofe parts. 



Of 



