DISEASES, &C. 



197 



capable of growth in suitable material, and impervious to 

 weather conditions, finding rich soil for their growth in the 

 healthy larvre of the returned stocks, took full advantage of it. 



359b. " American " and " European " Foul Brood In 1908-9 



Dr. G. F. White and Dr. E. F. Phillips published in the Bulle- 

 tin of the U.S. Bureau of Entomology, the results of certain 

 investigations into the nature of Bee Diseases. According to 



^'.^^S?*- 



PJtoto hy} 

 DISEASED STOCK, " J. G. D. 



[.'. G. Digges. 

 ■ TENTILATOE AND " FEDERATION " DUMMY. 



these investigations, which, however, are not yet complete. 

 Bacillus alvei (351) has been discovered in the disease com- 

 monly called Black Brood (341), and to this disease, they, 

 accordingly, give the new title of "European Foul Brood,'' 

 claiming that it is the disease which was investigated by Cheyne 

 and Cheshire in England; while to the more prevalent disease 

 they give the name of "American Foul Brood," stating that 

 they have '■ conclusively demonstrated " its cause to be Bacillus 



