262 C. H. TURNER. 



EXPERIMENT 3. A branch containing blossoms on which a bee 

 was foraging was gently removed from the plant and so manipulated 

 that the bee was less than two centimeters from the honey of one of 

 the discs of experiment i. This was tried with six bees. 



In no case did the bee pay any attention either to the honey 

 or to my discs. The bee always left immediately and went to 

 one of the blossoms of the melilotus. 



EXPERIMENT 4. Whenever a bee alighted on a blossom near one 

 of the discs of experiment i, I gently moved the sprig until the bee 

 was brought to within less than two centimeters of the honey. This 

 was tried with a dozen bees. 



No response was made to the honey. 



In a cluster of weeds about a yard from the one in which most 

 of my discs were located, I had placed, at the beginning of this 

 series of experiments, a red disc so copiously supplied with honey 

 that it overflowed upon the weed. This disc was so situated 

 that by simply raising my eyes I could see it. Although the 

 melilotus was swarming with bees, that disc remained in that 

 place for nearly two hours before receiving its first visit from a 

 bee. At that time, however, a bee hovered at the edge of the 

 disc and began to sip the honey. It then alighted on the edge 

 of the disc and continued to sip the honey. Almost immediately 

 another bee flew up to this one. They both circled about for a 

 moment and then alighted on the disc; one on the edge and the 

 other near the center of the upper surface. From this time on, 

 all of my attention was focused upon this plant. 



EXPERIMENT 5. Near this disc was a blossom which I had wet 

 with honey. While the two bees mentioned in the above experiment 

 were foraging on disc one, a bee alighted on this blossom. I gently 

 moved the sprig until the bee was within about a centimeter of the 

 two bees just mentioned. 



It left the blossom and, alighting on the disc, began to forage. 



EXPERIMENT 6. While these bees were imbibing honey, I at- 

 tached two other red discs, each supplied with honey, to other 

 branches of the weed. (For descriptive purposes, starting wiih 

 the disc upon which the bees were feeding, we will designate 

 them disc one, disc two, disc three.) 



One by one, the three bees on disc one departed for the hi\i . 



