

^^^m-V!f^* 





[From o photograph lent by the Department of Agriculture and 

 Technical Instruction, Dublin.^ 



Pig. 1. — Portion of a comb affected by foul brood in an advanced stage. 

 The empty cells are those from which healthy bees have emerged, or 

 which have been occupied by diseased larvEe, the remains of which are 

 not discernible in the print. All the capped cells bear the appaarance of 

 containing diseased brood. This is indicated by the sunken oappings of 

 the ceils, and the numerous irregular perforations in the cappings. 



IFacingp. 34. 



