290 THE ZOOLOGIST. 



the Cave-Spider (Meta menardi). This goes to show that the 

 Bats feed in the caves, as it is very unlikely that they would find 

 M. menardi outside. I also saw a good many specimens of both 

 the before-mentioned species of moths on the walls and rotted 

 timber in the caves, where they were hybernating. I saw none 

 outside the caves. The same remark applies to the dipterons. 

 The beetles were probably taken in summer, but it is, of course, 

 an open question as to how the Bats caught these purely ter- 

 restrial insects. 



At 4.30 p.m., following the advice of Mr. Coward, I took up 

 my stand outside the large water-logged boring C, and waited. 

 At 5.20 a small Bat flew in, and a few minutes later a Greater 

 Horseshoe flew out. At 5.25 another flew out, and disappeared. 

 It was a very mild day. 



I watched outside this cave again on Jan. 16th, at dusk, 

 when the temperature stood at 46° F., and at 5.20 I saw two 

 Bats, evidently Horseshoes, fly down across a field on my left. 

 Clearly they had left the mines by way of the shafts higher up 

 the hill. Insect-life, I observed, was on that night in plenty, and 

 the Bats must have found no difficulty in getting food. 



On the 19th we arrived at the mines with ropes. We got 

 down one shaft, thus gaining access to the longest passage in 

 the mines. My friend, who went down first, found a Bat almost 

 immediately, and I thought that this augured well, but it proved 

 to be the only one in the passage. Underneath the spot where 

 it was hanging was a little heap of excrement. I noticed similar 

 heaps in the other caves. It would thus appear that the Bats 

 prefer hanging from the same spot. Later observations rather 

 confirmed this view. 



We watched outside boring C between 5.10 and 5.36, but in 

 that time no Bats flew out. It was a cold day, with a south-east 

 wind. Borings A and B empty as before. Through being dis- 

 turbed they finally deserted these two holes. 



Watched outside again for some time on Jan. 23rd, when it 

 was freezing all day in the shade, but ^aw no Bats come out. 

 This leads one to conclude that the Greater Horseshoe Bat goes 

 abroad regularly in mild weather in winter, yet in the cold 

 weather it stays inside the caves. 



The Bat which was caught on the 19th I brought away with 



