30 Proceedings of the Royal Physical Society. 
(b) D4, Disease appeared 1 week after stock arrived from Exeter. 
E14. ie 2 weeks 55 * } 
KM. : 34 months __,, i S. England. 
F14, 6 months after introduction from Wales. 
3) 
See also under (2). 
(2) Ln relation to other affected stocks in Lewis. 
B14. ) More than 7 months after the termination of the previous 
Oi. \ outbreak. 
D1. Three months after B14 and C13. 
14. Six months after introduction, upon which it had been placed 
in hive in which a stock, E14, had just died out from 
Isle of Wight disease. | 
(3) Duration, where not interfered with. 
B14. A few days, and recovered. 
D1. 40 days, and died out. 
KM. 82 days, and died out. 
E14. June to beginning of winter, and died out. 
Gp. July to winter, died out. 
F14. Few weeks—recovery—recurrence in the following year, 
lasting August to September 1915. 
(4) Relation to Nosema apts. 
1. Spores found in only two cases coincident with Isle of Wight 
disease symptoms. 
* 
\N 
2. Young stages were found in two other affected stucks, one of which © 
completely recovered. 
3. Healthy stocks known to have Nosema all the time in which no 
outbreak of Isle of Wight disease occurred. 
Placed on a new site when introduced. 
Strong stock. _ 
. A particular case, | Mortality heavy. 
Ws 
E14, in detail. | Extreme paucity of Nosema in bees while this 
mortality in progress. 
Nosema fluctuations at different stages. 
(5) Effect on Apiary as a whole. No more than two stocks ever displayed 
symptoms at one time or in succession. During this period the apiary 
contained various races and strains of bees. 
