PLATE 2 



EXPLANATION OF FIGURES 



Photographs of motor cells from the antero-lateral group in the sixth cervical 

 segment of the spinal cord. The sections were mounted on the same slide and 

 hence stained together. X 320. 



4 Before hibernation. Same animal as in figure 1. 



5 During hibernation. Same animal as in figure 2. 



6 After hibernation. Same animal as in figure 3. 



400 



