252 C. H. TURNER. 



honey placed on each. These were placed in position at eight 

 o'clock on the morning of the fifteenth of July. 



These discs were watched until two o'clock in the afternoon; 

 but not a bee made any response to them. 



EXPERIMENT 3. At about eight A.M.. July 77, 1911, two disc*, 

 marked with red stripes on a green back-ground were attached to the 

 tops of upright sticks placed in the midst of a mint weed from which 

 several bees were collecting honey. By means of a string the bra nches 

 of the plant were drawn together in such a manner as to have several 

 blossoms near each of the discs. Honey was placed on the discs 

 and on some of the blossoms near by. Accidentally some honey 

 fell upon some of the leaves. 



After waiting, restlessly, in the hot sun, for nearly two hours, 

 I was rewarded for my patience by seeing a bee alight on one 

 of the discs, and, while hanging suspended from its edge, sip the- 

 honey. When it had finished and before it started for the hive, 

 the bee made a short flight of orientation. A few minutes later 

 a bee alighted on the top of disc number two and began to sip 

 the honey. Before departing for the hive, it made a flight of 

 orientation. From this time to the close of the experiment, 

 thirty-five visits were made to the discs, twenty to disc one and 

 fifteen to disc two. Often bees were on both discs at the same 

 time. On one occasion, three bees were on disc two and two on 

 disc one. On another occasion, two bees were on each disc. 

 Soon after the bees began to collect from the discs I noticed 

 that several bees were collecting honey that had dropped on the 

 leaves. To check them, wherever I saw honey on a leaf I 

 covered it with dust. By this means I hoped to cause those 

 bees to notice the honey on my artifacts. The habit of col- 

 lecting from leaves had become fixed and those bees spent the 

 remainder of the afternoon searching the leaves for honey. Oc- 

 casionally they would find a new supply and coHect therefrom 

 until I covered it with dust. By the close of the afternoon, about 

 six bees were collecting from the artifacts and four hunting for 

 honey among the leaves. 



EXPERIMENT 4. About two hours before departing for home, 

 disc two was placed in a new position and a cornucopia marked 

 with alternate red and green longitudinal lines was placed when- 



