292 THE ZOOLOGIST. 



The enveloping wing-membranes must be very useful in pre- 

 serving warmth. 



I found it took no notice of fumes of camphor and ammonia, 

 &c, solutions of which I presented to its nasal appendages by 

 means of saturated cotton-wool. Bright gas-light never troubled 

 it in the least, and Mr. Coward informed me that even a strong 

 acetylene lamp or an explosion of flash-light powder has little 

 effect on these Bats. It could hear my finger passing gently over 

 my forehead, when I held my head a little more than nine inches 

 away, for it would immediately look up, or move its ears : any- 

 thing like the rattle of cup and saucer made it shake throughout 

 the body. Its sensitiveness to sound was remarkable. If the 

 slightest noise was made when it was hanging awake from 

 the wall, suddenly up would go its head, and the ears would 

 vibrate for a short time, when it would subside and gradually 

 fall asleep. 



It is an interesting sight to watch it "turn in" after flight, 

 i. e. fold its wings around the body in preparation for sleep. It 

 hangs a little while with the wings down beside the body like an 

 ordinary Vespertilionid, then in a quick movement it spreads 

 them out around the body, at the same time forcing the fore arm 

 over the back. The ears are taken in under the antebrachial. 

 Occasionally one is left outside, but after an interval it is with- 

 drawn under cover ; sometimes it is left out altogether. My 

 Bat had a predisposition to folding the left wing under the right, 

 as this was the position of the wing nine times out of the eleven 

 I especially watched. 



One curious point was noticed with regard to the times of 

 waking of these Bats in captivity. Under natural conditions I 

 found them on the wing between 5 and 6 o'clock ; but the Bat I 

 kept in captivity woke up a little before 10 o'clock every evening, 

 though the time varied somewhat. Mr. Coward found the Bats 

 waking between 4.45 and 6 under natural conditions, but in 

 captivity frequently as late as 11 o'clock, or even later. This is 

 an interesting fact, but I cannot explain it. 



During the cold of the latter end of January my Bat slept for 

 a longer period each night, and on the night of Jan. 23rd I could 

 not wake it. I tried every means I could think of, but it slept on, 

 though it moved; for instance, it "drew up," folded back one 



