ON THE MAMMALIAN NERVOUS SYSTEM. 



323 



Fig. 4.* 



Fig. 5. 



* The central nervous system displayed in this and succeeding figures is a photographic reduction of 

 a full size photograph of an actual dissection, as shown also in Plates 30-33. By this means, exact topo- 

 graphy of all experimental details (i.e position of electrodes, &c.) has been preserved. It is, perhaps, 

 hardly necessary to add that the amount of cord exposed is shewn in Plate 29. 



2 T 2 



