MAST CELLS IN CATTLE AND RAT 



Fig. 12 



Closed vascular loop in subcutaneous connective tissue from rat previously injected 

 to show small vessels. The mast cells lie predominantly around the peripheral 

 vessels with muscle coats and a well-marked adventitia ( 50). (Riley (1953), J. Path. 



Bact. 65, 461.) 



51 



