Smithsonian Report, 1896. PLATE XIV. 



T*« ' 



.■■''• ' >'•' 



C. S. . 



cl.b. 



Cat 



S0"?- V 



Fatigue 



Rest 



Honey Bee 



_ - n.- 

 c. s. 



Rest Fatigue 



Processes of Life Revealed by the Microscope. 



Fig. 4. Figures from Hodge (Jour. Morphology, Vol. VII), showing changes in the nerve 

 cells of the spinal ganglia in the cat and of the brain in the honey bee. The words Rest and 

 Fatigue indicate the appearance of the cells in these two conditions, n, Nucleus; cl b, cell 

 body, and c s clear space around the shrunken nucleus in the fatigued cells. 



