Figure 1 5. 



Photograph of a cat with complete paralysis of the hind 

 quarters caused bv the intraspinal injection of a solution of 

 homologous tissue ash as described in the text. 





Figure 16. 



Photograph of a cat with "neutritis" of the hind limbs 

 resulting from intramuscular injections of cytosa directly 

 over the sciatic nerve. 



