264 C. H. TURNER. 



Series II. (July 13, 8 A.M.) 



On my arrival at the field this morning, I noticed that all of 

 the honey had been removed from the discs; and, in i\\o cases, 

 that much of the color had been removed in spots. It looked 

 as though the bees had attempted to carry off even the paper 

 that had been saturated with honey. 



EXPERIMENT 8. Among the branches of the same plants of 

 melilotus from which, yesterday, a few bees learned to collect hoin-y, 

 I placed six red and six blue discs. Two of the red discs (i, 4) 

 and one of the blue were attached to the tops of rods five feet high 

 (the height of the weeds}, the others were pinned, at different levels , 

 to the branches of the weed. In the center of each red disc, honey 

 was placed. The red discs were numbered from i to 6, the blue 

 from 7 to 12. There was no honey on the blue discs. 



Almost immediately a bee alighted on disc one. These discs 

 were watched continuously for a little less than a half hour. 

 During that time no bees visited the blue discs, but they made 

 thirty-nine visits 1 to the red discs. These visits were distributed 

 as follows: disc one, seven; disc two, two; disc three, nine; disc 

 four, seven; disc five, six; disc six, eight. The bees visited the 

 discs on the rods (i, 4) just as readily as they did those attached 

 to the weeds; they visited those high up (i, 2, 4, 6) just as 

 frequently as they did those low down (3, 5). \Yhenever a bee 

 was ready to depart for the hive, it always made, in the manner 

 already described, a careful orienting flight. From now on the 

 bees began to visit the red discs in such large numbers that it 

 was impossible to keep an accurate record of the number of visits 

 Sometimes as many as ten bees would visit the' same di^c at 

 the same time. 2 The significance of this marked change in the 1 

 behavior of the bees will be discussed later. 



EXPERIMENT 9. / selected a red disc from which four bees had 

 been collecting honey and, while the bees were away, placed it al out 

 six inches lower on the plant. In its place I placed a blue dis< . 

 The blue disc did not have any honey on it. 



'In all of these experiments, whenever a bee alighted on one of my artifacts, it 

 was counted a visit, whether it was the arrival of a new bee or a return visit of a 

 former visitor. 



! Whcn these experiments were first planned, it was my intention to mark each 

 bee that participated; but, at this stage of the work, I rcali/i-d tluit such a. pro- 

 cedure would be impracticable and my paint and brush were put auay. 



