BEES IN COLONIES AFFECTED BY EUROPEAN FOULBROOD 9 



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flow. But as soon as the next series of eggs hatched, the disease^ 

 again gained the upper hand, reaching another higher peak on the 

 thirty-first day, at which time it was deemed necessary to start treat-^ 

 ment. It had become evident that the colony was being overrun by 

 the disease. More and more dead larvae were being allowed to re-^' 

 134440°— Bull. 804—20 2 



