MAMMALIA. 



193 



FIG. IV. 



THE SPINAL CORD OF THE BABOON. 



(SIMIA PAPIO.) 



THE thick portion of the spinal cord extends to the bottom of the second lumbar 

 vertebra ; the point reaches to the lower part of the fourth. Many of the ganglia are 

 placed within the spinal canal. 



FIG. V. 



THE SPINAL COED OF THE DOG. 



(CANIS FAMILIAEIS.) 



THE thick portion of the spinal cord reaches to about the bottom of the sixth 

 lumbar vertebra ; its point terminates in the canal of the sacrum. 



The figure of the hedgehog is the exact size of the preparation from which it is 

 taken ; that of the baboon and dog have been reduced to the length of that of the 

 hedgehog from very accurate drawings of the parts of their natural dimensions ; and 

 thus the difference of the termination of the spinal cord and the length and breadth 

 of the cauda equina may be accurately observed. 



c c 



