13 



These three colonies were normal, healthy colonies with plenty of 

 stores at the beginning of the experiment. The bees were not compelled 

 to work the blossom^ for food, and their activities generally were such as 

 would arise from choice. On coming out of the hive the morning after 

 moving into the cages, a goodly number of the bees flew directly to the 

 screen, where they tried to escape. A large number of these, it is reason- 

 able to assume, died as a result of their frantic efforts to escape. It is 

 probable that these were the individuals that showed no trace of poison 

 in the arsenic test. While a large number went to the walls of the cage 

 to escape, a goodly number went to work immediately on the blossoms. 



It was interesting to note that individuals coming from the hive to 

 the blossoms would, after feeding, return to the hive or go directly to the 

 walls of the cage. 



In front of the hives in the 

 sprayed and dusted trees there were 

 piles of dead bees. This may be ex- 

 plained on the basis of death occurring 

 in the hive and the bodies being carried 

 out by the other workers. There were 

 no dead bees in the hives at the end of 

 the experiment. The spot directly in 

 front of the hive and the floor near 

 the walls contained the large majority 

 of the dead bodies, but the entire floor 

 of the cage was always well littered 

 with dead. Those found directly un- 

 der the trees probably died on the 

 blossoms and later fell to the floor. 



As another part of the field work, 

 trees in the open and in full bloom and 

 in the same orchard (See Fig. 6) were 

 sprayed and observed to determine 

 whether bees visited them. It was 

 thought there might be a possibility of 

 a forced working of the sprayed blos- 

 soms by the bees in confinemeiit (in 

 the cages) as they were not free to 

 choose the flowers that they worked. 

 It was a case of visiting the sprayed 

 blossoms or none at all. However, 

 with trees sprayed in the open and 

 with unsprayed trees on all sides the 

 possibilities of forced feeding on these 

 trees was removed, and it is reasonable 



mg. 7. Plan of orchard. Circles rcpre- tO aSSUmC that bcCS, f OUnd OH these 



sent trees. Circles in squares indicate ^rCCS were there by virtUC of their dc- 



caeed trees, and circles witli x's represent . i . , j;i;„„„ 



trees sprayed in the open. Sire, not beCaUSC of imposed COndltlOUS. 



