34 Journal of Comparative Neurology. 



V. Explanation of Plate II. 



Cerebellum of normal young adult domestic cat, age about one year. Cat 

 injected through carotid artery with gelatin-carmine. Longitudinal vertical 

 section near the median line, section adout 1-50 inch in thickness. Photographic 

 negative X 20, PlateX !• No retouching at any stage of the process. Preparation 

 by Frank S. Aby. Photograph by W. H. Knap. Plate by A. Jahn. The heavy 

 color indicates the/?Vz mater. 



1. Vessels of class A. Shows recurrent capillaries to granule layer. 



2. Vessel of class B. Shows recurrent capillaries to molecular layer. 



3. Along this line the vessels form loops, sharply defining cortex from 

 medullary portion. 



4. Vessels of class C. 



5. Region similar to 4 of plate. 



6. Vessel of class A. 



7. Vessels of class C. 



8. Showing separation of granule layer and molecular layer along region 

 of Purkinje's cells. 



9. Recurrent capillaries from vessels of class B. 



10. Vessel of class A. 



11. Vessel of class A, showing recurrent capillaries to granule layer. 



12. Line of separation similar to 8 of plate. 



13. Vessel of class A. 



Private Laboratory of Frank S. Aby, Chicago^ January, iSgg. 



