222 c. h. turner. 



Experiment ii. 



The loiver shade of window number one was raised half way and 

 the top shade loxvered. While the xvasp ivas out of doors, all the 

 shades of zvindoius two to six luere lozvered except the top shade of 

 window three, zvhicJi zvas raised as high as possible. 



The wasp behaved the same as in experiments three, five, 

 seven and nine. 



Experiment 12. 



The loiver shade of zvindow Jiuniber one zvas raised half way. 

 While the zvasp was out of doors, all of the other shades ivere 

 lozvered. 



The wasp behaved the same as in experiment eight. 



Experiment 13, 



The lozver shade of windozv nundm' one zvas raised about lialf 

 way. While the zvasp zvas out of doors, all the shades of windows 

 two to SIX zvere lozvered except the loiver shade of zvindow mnnber 

 three, zvhich zvas raised as far as possible. 



At first the wasp searched carefully the upper portion of the 

 wall to the west of the upright A. Then, as a result of extend- 

 ing its search to the east, the nest was discovered. 



This experiment was repeated with the same results. 



Experiment 14. 



The same conditions as in experiments three, five, seven, nitie and 

 eleven. 



The wasp behaved the same as it did in experiments three, five, 

 seven, nine and eleven. 



Experiment 15. 



The same conditions as in experiment one. 



The wasp behaved as in experiment one. It took about one 

 minute to find the nest. The wasp was allowed to make two 

 trips. 



Experiment 16. 

 The same co7iditions as in experiment one. 



After the shades had been maintained in this position for about 

 two days, the wasp on entering the room flew obliquely upwards 



