SENSORY ADAPTATIONS OF BATS. lol 



February 1 1 : (i) Put on floor of cage at 3:25. Flew up to 

 cloth in 20 seconds. (2) Flew up to front, went across to cloth 

 and began pulling at it in 1 7 seconds. (3) Flew directly to cloth 

 after ten seconds. (4) Looked about, flew to right end of front, 

 then ran to cloth in 30 seconds. (5) Hesitated and looked about, 

 then flew to front and reached cloth in 30 seconds. (6) Was 

 quiet, then turned and flew directly to cloth in 40 seconds. (7) 

 Went to corner of cage, hesitated, then flew to front and went 

 directly to cloth in 35 seconds. (8) Flew directly to cloth in 10 

 seconds. (9) Did not move for 75 seconds, then turned partly 

 around and flew directly to cloth. (10) Looked around, 

 scratched itself and washed its face, then after 2^ minutes, flew 

 without hesitation to cloth. 



Was not taken out of the living cage on February 12. 



February 13 : (i) Put in cage at 3 : 58^. Flew to end of 

 cage and climbed across to cloth in one minute. (2) Flew to 

 right front, walked across and was fed in 20 seconds. (3) Looked 

 around and flew directly to cloth in 12 seconds. (4) Turned 

 around several times, flew into corner and went to cloth in 45 

 seconds. (5) Was quiet an instant, turned and flew to cloth in 

 45 seconds. (6) Put on floor, flew to front of cage near cloth, 

 turned toward it but stopped, looked about, then cleaned its fur 

 and became quiet ; nearly five minutes after being put on the 

 floor it again began to look about, then went directly to cloth 

 and was fed. (7) At once ran to front of cage and climbed it 

 but did not go to cloth till 3 minutes later. (8) Remained quiet 

 a minute, then climbed up in corner nearest cloth and rested a 

 minute, then went directly to cloth. (9) Remained quiet on 

 floor for a minute, then flew to end of cage and remained for 

 some time, when the experiment was discontinued. 



February 14: There were no peculiarities in its activity. The 

 times for the trials were as follows: (i) 15 seconds; (2) 20 

 seconds; (3) 10 seconds ; (4) 7 seconds; (5) 20 seconds; (6) 

 30 seconds ; (7) 12 seconds; (8) 45 seconds; (9) 45 seconds; 

 (10) failure, the animal settled at one end of the cage and 

 remained there until taken out. 



Was not put in the experimental cage nor fed on the fifteenth, 

 sixteenth, or seventeenth. 



