COLOR AND THE BEHAVIOR OF ARTHROPODS 



87 



Black background 



3.17. Both with one black 

 paper. 



4.45. Large one, nothing; 

 small one had one black and 

 one white paper. 



7.50. Same. Put in fresh 

 water and took all the papers 

 off the small animal. 

 July 10 



8.20 A. M. Small one has 

 one black, large one nothing. 



2.00 p. M. Large one, six 

 black; small one, one black. 



White background 



4.45. Large one with two 

 black and one white; small 

 one, nothing. 



7.50. Same. Fresh water 

 added and all the papers re- 

 moved from the large animal. 



July 10 



8.20 A. M. Small individual 

 with two white and one black ; 

 large one nothing. 



2.00 p. M. Large one, noth- 

 ing; small one with four 

 white and one black. 



■ Experiment 4 — July 10, 2.07 p. m. Four clean Libinias were 

 placed on white and four on black background; ten white and 

 ten black papers were added to each dish. Animals in each 

 dish numbered i, 2, 3, and 4. 



Black background 

 3.45. I, 2 and 3 nothing; 

 4 carried one white. 



4.30-8.00. Same. 

 8.15. I, 2 and 3, nothing; 

 4 had two white, one black. 



White background 



3.45. I and 2 nothing; 3 

 bore one white; 4 bore two 

 black and one white. 

 4.30-8.00. Same. 



8.15. I and 2, nothing; 3 

 bore two white ; 4, two black. 



Experiment 5 — July 11, 8.30 a. m. Same conditions as last 

 experiment, except that the four Libinias which had been on the 

 black and white backgrounds respectively, were interchanged. 



Black background 



8.05 p. M. Nothing on any 

 of the animals. Fresh water 

 added. 



White backgwiind 

 8.05 p. M. Nothing on any 

 of the animals. Fresh water 

 added. 



