14 CIECULAE 3 9 2, V. S. DEPARTMENT OF AGRICULTURE 



FiGnsB 10. — Symptoms of European foulbrood : A, Ventral view of an extended larva re- 

 cently dead of European foulbrood ; B, extended larva partly decayed ; C, scale of an ex- 

 tended larva; D, recently dead larva, and E and F, scales of dead larvae irregularly 

 twisted ; G, oral view of recently dead extended larva ; II, partially decayed larva ; I, 

 scale of larva that died after straightening out. 



