36 Proceedings of the Eoyal Physical Society. 



16th June. — A fine day. Bees appeared normal. No. 2 looks like 

 swarming. No crawling bees seen. 



21st June. — A dull, rather cold day. Bees were clustering on the ground 

 near all three hives in small groups. No. 2 appeared to be the only normal 

 stock, and was strong. The bees from No. 1 and No. 3, both inside and 

 outside the hives, appeared weak and dormant and unable to sting. There 

 were very few dislocated wings. The abdomens and general appearance of 

 the bees, with a few exceptions, seemed normal. It is doubtful whether 

 any bees from No. 2 were clustering, although there were clusters under that 

 hive. 



22nd June. — A fine day. The symptoms just as previous day. No. 1 

 and No. 3 stocks were destroyed and the hives disinfected. 



24th June. — No 2 was working well and looked like swarming. The 

 ground was limed. 



26th June. — No. 2 working well. 



29th June. — Swarm came off, but got away and was lost. 



9th July. — Bees working well, but some few drones observed crawling. 



15th August. — No. 2 working well and seems strong. Supers nearly full. 



This stock died out during the winter 1914-1915. All stocks belonging 

 to three bee-keepers, who were near neighbours of N, were lost also. 



O.—O's apiary was 2 miles north of N. had six stocks, and in July 

 1914 these were all found to be suffering from Isle of Wight disease. Only 

 one stock survived till 1915, and that eventually died out. 



Several cases were reported at Eaemoir in 1914 which were not verified 

 as the stocks had been destroyed before notice was received. 



In 1915, there were two outbreaks, three-quarters of a mile distant from 

 each other, at this place. 



P.— P had five stocks in good hives, clean and well kept. The stocks 

 were all strong. All appeared healthy in June 1915, but in July Isle of 

 Wight disease was very marked. Numerous bees were crawling on the 

 ground and clustering; others were climbing up grass and leaves; many 

 had dislocated wings and distended abdomens. In those examined the colon 

 was very much enlarged and clogged. There were many dead lying about. 



Three of the hives contained parent stocks, while the other two held 

 swarms. The parent stocks seemed to be more severely attacked. P 

 destroyed all his bees at the end of July and cleaned and disinfected his 

 hives and appliances. 



g.-Q's apiary was not so well kept, and his stocks were weak, con- 

 sequently the outbreak did not appear so marked, and the disease lingered 

 on for a long time. I have frequently noticed that when a really strong 



