38 Proceedings of the Royal Physical Society. 
In the spring of 1915 he reported that several stocks had shown marked 
signs of dysentery, but there were no crawlers. T disinfected his hives after 
the attacks of dysentery. 
In the spring of 1915 the swarm of bees already mentioned, which had 
settled in the roof of the cottage in 1913, showed marked symptoms of 
the disease. T, with the help of neighbours, promptly removed the bees, 
disinfected the place, and blocked up the entrance. 
In June 1915, T’s stocks were strong and working well. 
In August 1915, one stock showed very slight signs; there were very few - 
crawlers, and it is understood that T meant to destroy it. 
U.—U’s apiary is situated about half a mile due east from T. 
In 1914, he owned seven hives and five ruskies. 
In October 1914, there were no signs of Isle of Wight disease ; but 
robbing was going on very vigorously. On this account some apes were 
probably weak. 
During the following winter, 1914-1915, five stocks died out, and all showed 
signs of dysentery in the early spring. 
In June the remaining stocks were fairly strong, and all combs were badly 
marked with dysentery. When visited the weather was dull and no crawlers 
were seen. 
The following day was bright at intervals, and a few crawlers were then 
observed. These were found to have the colon very much dilated and 
clogged. 
In August 1915 only one stock remained, viz. the one which had 
appeared the weakest in June. It showed slight but distinct traces of 
the trouble, and U decided to destroy the bees and clean up and disinfect 
his hives. He did so in order to prevent the disease spreading among 
his neighbours. | 
No other cases in the immediate neighbourhood have been reported, 
although there are several apiaries near by. 
V.—V’s apiary is situated about five miles north-east of T. It consisted 
of ten hives and twenty-five ruskies. 
In August 1915 all seemed very strong and well cared for, but examina- 
tion showed the ground covered with bees unable to fly, with distended 
abdomens, dislocated wings, and all the usual appearances of Isle of Wight 
disease. I could not locate any special stocks as being the affected ones, for 
the bees were distributed all over the grass, and not in front of any particular 
hives. Samples of bees were sent to Aberdeen University investigators as 
usual, who reported that the appearances were those. associated with the 
disease. The bees sent did not contain Nosema. 
