Lesions 785 



and have a bright yellow color. The discovery of these" "driisen," 

 "grains," "sulphur grains" or "yellow granules" is sufficient to 

 base a suspicion of the disease upon. The only confirmation re- 

 quired is a microscopic examination of a granule crushed between 

 glasses, by which the r&diating filaments with their clavate expansions 

 may be found, 

 so 



