NATURAL ENEMIES 
99 
gnawing a hole through the wooden base, coming from 
below. For weeks he has pursued his fly-hunting busi¬ 
ness undisturbed. 
“On Sunday one of the waiters discovered him in 
the act of introducing a friend or member of his family 
to his foraging ground. The newcomer was very shy, 
and only put his head through, while the old habitue 
tried to coax him in the window. He would catch a 
fly, gravely hand it to his friend, who would as gravely 
eat it, and look for more. By degrees he lost a little 
of his fear, walked out, and soon became an expert in 
the new business. Either one or both may be seen al¬ 
most any day by any one who may be patient enough to 
wait for their appearance a short time. It is certainly 
a very novel sight, and well worth a few minutes’ time 
to see .—Newburgh Telegraph” 
Mr. Nat. C. Dearborn, of the Biological Survey of 
the U. S. Department of Agriculture, states that he has 
frequently seen evidence of the destruction of adult 
flies by mice on window-sills, the work having been 
done at night. 
