Bui. 671, U. S. Dept. of Agriculture. 



Plate I. 



Fig 1.— Comb Containing Larwe Dead of European Foulbrood. 



About natural size. (Original.) 



Fig. 2.— Comb Containing Larv/e Dead of American Foulbrood. 



About natural size. (Original.) 

 EUROPEAN AND AMERICAN FOULBROOD. 



