288 N. E. McINDOO 



Leaves and stems of pennyroyal: 

 8 moved away quickly 

 6 raised antennae and moved away slowly 

 3 moved away slowly 



3 vibrated antennae vigorously 

 2 arose and moved away slowly 



2 arose slowly 



1 arose quickly and stroked antennae 

 Reaction time 2 to 5 seconds, average 2.74 seconds 

 Drones tested, 25 



Leaves arid sterns of spearmint: 

 6 moved away quickly 

 5 vibrated antennae and moved slightly 



4 arose and moved away slowly 



3 moved away slowly 



1 raised antennae and moved slightly 

 Reaction time 2 to 4 seconds, average 2.55 seconds 

 Drones tested, 19 



Once all the workers in a case were excited 



Leaves and stems of scarlet sage: 



4 arose quickly and moved away slowly 

 4 vibrated antennae slightly 



3 moved away slowly 



3 raised antennae and moved away slowly 



2 vibrated and stroked antennae and moved away slowly 

 Reaction time 2 to 10 seconds, average 3.37 seconds 



Drones tested, 16 



Summary 



To summarize the preceding data, it is found that 87 per cent 

 of the individuals tested moved away from the peppermint, 80 

 per cent from thyme, 89 per cent from wintergreen, 6 per cent 

 from honey, 29 per cent from pollen, 45 per cent from honeysuckle, 

 78 per cent from pennyroyal, 73 per cent from spearmint, 69 

 per cent from scarlet sage, and 4 per cent from the bee stings. 

 Thus, to all of these odors, except those of honey, pollen, honey- 

 suckle, and the bee stings, bees react negatively. For the odors 

 of honey, pollen, and honeysuckle the most characteristic re- 

 sponse is in searching for the source of the odor by turning around 

 over the vial with the head almost on the floor of the case and 

 by vibrating the antennae vigorously. In response to the bee- 



