PLATE 2 



EXPLANATION OF FIGURES 



5 to 9 The preparations illustrated on this plate are also designed to show 

 the comparative distribution of mitochondria in the spinal ganglion cells of verte- 

 brates. All of them have been drawn from preparations made by Bensley's 

 method. Plates 1 and 2 should be compared. 



5 Pigeon, adult; decapitated, April 18, 1913. 



6 Eutaenia sirtalis (garter snake), male, total length 62 cms.; decapitated 

 April 21, 1914. 



7 Rana palustris, adult; decapitated, January 22, 1914. 



8 Pseudemys hieroglyphica (terrapin), male, length 17 cms.; decapitated, 

 March 7, 1914. 



9 Necturus maculatus, female, length (snout to anus) 23 cms.; decapitated, 

 March 26, 1914. 



2(i 



