142 



On the 23rd of this month spores of Nosema were again found 

 in bees taken for examination. During the previous weeks the 

 stock had been well supplied with pure unmedicated candy and 

 packed up for winter. 



On the 23rd January 1918 the stock was looked at, and three live 

 bees were taken and examined. No stage of Nosema could be 

 found, and it was concluded that these were free from infection with 

 this parasite. 



During the winter the mortality was fairly high. 



In the beginning of February the stock was found to be cover- 

 ing about five frames and to have plenty stores. Good progress 

 was made in spring, and at the end of May it had a strength of ten 

 frames, with brood on nine. 



During June the strength was maintained and the bees were 

 storing in a super. As there were signs of preparations for swarm- 

 ing the stock was divided, and a nucleus of four frames with the 

 queen was made on the i8th of this month. The original stock 

 now consisted of seven frames of bees with three sealed queen cells 

 and plenty stores. 



On 6th July the stock swarmed, and the swarm was returned 

 after the removal of two virgin queens and two queen cells. On 

 the following day the queen was seen upon the frames. 



During August and September the stock carried on normally, 

 and at the end of the month there were eight frames of bees, includ- 

 ing two of sealed brood. There were abundant stores for winter, 

 and a small surplus (2 sections) had also been yielded. 



During this second year bees from the stock were regularly taken 

 and examined with the results shown in the accompanying table. 



The following are the results of examinations made from 

 January 19 18 onward: — 



No stage of the parasite found. 

 A very few spores seen. 

 Eight contained the parasite. 

 All contained spores. 

 No stage of the parasite found. 

 Three contained spores. 



Do. 

 All contained spores. 

 No stage of the parasite found. 



Do. 



Do. 



Do. 



(2 examined separately. I No stage of the 



10 teased collectively, 4 exanninations. [ parasite found. 

 46 .. ., 4 .. )-. 



J 



On various occasions larvae and pupae were examined for 

 Nosema, but we were never able to observe any traces of it in these 

 stages of the bee. 



Summary. — Reviewing the foregoing record we note that the 

 stock in the course of two seasons yielded two nuclei and one 

 natural swarm (the second natural swarm was returned). It main- 

 tained itself and yielded a small surplus of stores. The stock being 

 an experimental one of necessity was subject to a considerable 



