190 MAMMALIA. 



8. Seventh cervical nerve receiving branches from the first thoracic ganglion ; 



the filaments of which, terminating on the spinal nerves, are very minute, 

 and cannot be truly separated from these and traced to the spinal cord ; 

 filaments of the branches of the sympathetic proceeding towards the spinal 

 nerves are given to the ligaments and other structures. 



9. Spinal nerve, showing how the small branches collected from the spinal 



cord pass inclosed in separate sheaths of the dura mater; the ganglion 

 is coarse and thready, and is more uneven on its surface, and contains less 

 of the red interstitial matter than in man. 



FIG. III. 



THE FOX. 







(CANIS VULPES.) 



1. INFERIOR cervical ganglion of the sympathetic impacted on one side of the 



trunk of the par vagum. 



2. First thoracic ganglion of the sympathetic. 



FIG. IV. 



THE DOG. 



(CANIS FAMILIARIS.) 



1. SPLANCHNIC nerve. 2. Semilunar ganglion. 3. Hepatic plexus. 4. Superioi 

 mesenteric plexus. 5. Posterior cord of the par vagum. 6. Renal capsule. 



