1 84 WALTER LOUIS HAHN. 



or the same absolute spot that it had been accustomed to go to, but 

 a place diagonally across the cage from the piece of cloth. Re- 

 mained there for 7 minutes. (2) Put on floor facing cloth again 

 and looked about, then turned and flew to same point in back 

 in 50 seconds. Seemed to be looking about for cloth, then 

 became quiet. (3) Again put on floor facing cloth, turned and 

 flew to middle of back in 75 seconds and climbed all around over 

 that part of the back of cage. (4) Remained quiet 4 minutes, then 

 turned and flew to same spot as last time ; looked and crawled 

 about, then became quiet. (5) Flew to back in 70 seconds and 

 settled down without crawling about. (6) Flew to back in 75 

 seconds, looked about very little, then became quiet. (7) Put 

 on floor very near cloth, was quiet, then flew directly to back in 

 60 seconds ; climbed and looked around all over back before 

 settling down. (8) Looked around, then turned and flew di- 

 rectly to back, climbed about on back and then became quiet. 

 (9) Remained quietly on floor, then flew to back in 2^ minutes 

 and climbed about over it. Flew to lower right front (possibly 

 attracted by squeakings of another bat in a box near there). 

 Was quiet, then went to back of cage again and climbed about 

 over that ; it finally flew to right front corner and from there to 

 the floor where it rested. (10) Flew to back at right of middle 

 and became quiet. 



At this point in the experiment the bat was taken out and the 

 cage was turned to its original position, (i) The bat was again 

 placed in the middle of the floor and crossed back and forth sev- 

 eral times, then flew to front near cloth in 75 seconds and began 

 pulling at it violently. (2) Flew to cloth in 5 seconds. (3) 

 Flew to cloth in 20 seconds. (4) Flew to cloth in i 2 seconds. 

 (5) Flew to cloth in 25 seconds. (6) Remained quiet on the 

 floor, then flew to cloth in i Y^ seconds. (7) Flew near cloth 

 and went to it in 30 seconds. (8) Flew near cloth and went to 

 it in 50 seconds. 



On the following day the bat was again placed in the cage in 

 its original position, i. e., the front to the east, and on the ten 

 trials of this day it went quickly and without error to the cloth. 

 Before any other experiments could be made with this animal, 

 it escaped from its cage and could not be recaptured. 



