250 C. H. TURNER. 



tent. It then passed out of the east opening and hovered for a 

 {ew seconds above the tent. Then, keeping close to the top of 

 the grass, it flew about for a while in a sub-helicoidal curve and 

 then flew away to the field. 



Experiment 5. 



T/ie same conditions as in experiment four. 



At high noon, the bee arrived at the southern end of the tent. 

 After hovering but a moment, it flew around to the front and 

 entered the tent through the eastern opening. It then right-about 

 faced and dropped into the burrow. On leaving, at 12:08 P. M., 

 it hovered a moment inside of the tent, then departed without 

 further exploration. 



Experiment 6. 



The same conditions as in experiments four and fii'c. 



On arriving from the field, at 12:28 P. M., the bee flew im- 

 mediately, over the top of the tent, to the eastern opening and then 

 directly to the burrow. It did not turn about before entering the 

 nest. At 12:34 P. M., it departed without exploring the sur- 

 roundings ; it did not even hover in the inside of the tent. 



Experiment 7. 



The same conditions as in experiments four, five and six. 



At 12:52 P. M., the bee appeared at the eastern entrance to 

 the tent. Immediately the bee entered the tent and alighted on 

 the ground. At once it flew upward and dropped into the bur- 

 row. At 12:59 P- M., it departed, without exploring the sur- 

 roundings. 



Experiment 8. 



The rectangular piece of zvhite paper, ivitli a hole in its center, 

 ivas left in the same position as in experiments five to seven inclusive ; 

 but the tejit, over the nest opening, %vas so adjusted as to have its 

 open ends face north and south. 



At 1:25 P. M., the bee arrived at the eastern end of the tent. 

 It immediately flew around to the southern entrance of the tent 

 and entered the burrow. 



The above eight experiments were performed August 14, 1908. 

 On the next day (August i 5) the following five experiments were 

 performed with the same individual. 



