668 JOURNAL OF ECONOMIC ENTOMOLOGY [Vol. 27 



logicall)' is closely allied to Bacterium eurvdice likewise suggests the 

 identity of these forms. 



Regarding the etiology of European foulbrood and the variety of bac- 

 terial forms present in sick and dead larvae much remains to be deter- 

 mined. The writer is of the opinion that the evidence now available 

 points more strongly to a pleomorphic organism as the etiological factor 

 in this disease than to the secondary organism theory advanced by 

 White. 



Literature Cited 



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