FABMEES' BULLETIN 1713 



Figure 1. — Stages in the aecomposition of larvae (prepupae) dead o£ American foul- 

 brood : A, Healthy larva at the age when most of the brood dies of American foulbrooQ. 

 B, C, D, B, Progressive stages i» the decomjposition of dead larvae. These stages can 

 usually be detected only by removing the cappings. P, Scale of American foulbrooQ. 

 Except in new combs the scale is difficult to see by looking straight into the cell. The 

 comb should be held so that the line of sight falls on the long floor of the cells. This 

 can be done by grasping the comb by the top bar and holding it 8 or 10 Inches below 

 the eyes and tipping the bottom bar slightly away from you. O, Longitudinal view of 

 an American foulbrood scale. 



