88 ANATOMY OF A CHELONIAN. 



off a large outer branch, distributed to the kidney and 

 genital glands, while a slender inner filament runs back 

 on the'median surface of the kidney and there gets the 

 communicating branches from the sixth and seventh 

 dorsal spinal ganglia, there being a well-marked sym- 

 pathetic ganglion, which gives off branches to neigh- 

 boring parts, at the point of union. From this ganglion 

 the sympathetic chain passes to another which lies 

 on the same surface of the kidney farther back, and 

 receives a long, communicating filament from the 

 eighth dorsal spinal ganglion. From the most poste- 

 rior ganglion on the kidney the main sympathetic cord 

 runs to another, placed a short way posterior to that 

 organ, and getting a communicating branch from the 

 ninth dorsal spinal ganglion. The sympathetic trunk 

 then runs back, and becomes connected with the first 

 trunk of the sciatic plexus close to its ganglion. 



218. In the caudal region a longitudinal nerve-cord 

 unites the spinal nerves, and is, perhaps, a continuation 

 of the sympathetic chain. 



END. 



