394 
MR. NEWPORT ON THE NERVOUS SYSTEM 
ganglion, [fig. 2. (c),] distributes several minute nerves, one of which from its 
inner angle passes backwards, and is connected with the plexus of transverse 
nerves from the first ganglion of the trunk, from which plexus there are also 
filaments that unite with the first pair of nerves from the same ganglion, and 
thus establish a direct communication with the cerebral lobes. The other 
ganglion, the oval one, [fig. 2. (a),] is larger than the lunated, and distributes 
several branches. The distribution of nerves from the ganglia of the trunk 
and abdomen remains nearly the same. The transverse plexus have a little 
increased in size, and their union with the transverse nerves of the cord takes 
place a little nearer the ganglia. 
I have thus described the structure and arrangement of the nervous system 
in the larva of the Sphinx, and the development which it undergoes during the 
earlier stages of the pupa state. In a subsequent paper, which I hope to have 
the honour of laying before the Society, these changes will be followed through 
the remaining stages, and some observations submitted upon the manner in 
which they are effected. 
May 22, 1832. 
