104 Notes on the Frog. [Sess. 
among accumulations of moss, leaves, &c., if sufficiently deep 
to be beyond the effect of frost. In confinement some of them 
have buried themselves under moss in a corner, or even under 
the half of a broken flower-pot, but usually in the bottom of 
the water-tank. One thing they often do in the summer 
season is rather interesting. I have several common tumblers 
and other glass vessels in which I keep various aquatics and 
other things for microscopic purposes. Mr Frog will get over 
the edge of one of these glasses, quietly drop himself to the 
bottom, and lie there for some days at a time. On coming 
out he generally carries proof of his visit by his back being 
covered with duckweed, or whatever the glass may have 
contained. 
One of my frogs this year deposited a quantity of spawn, 
but not having a male in the frame, of course it came to 
nothing. I shall endeavour to get a male, so as to note the 
time the ova are in hatching, after they are deposited. I have 
not been able to add anything to my information about tad- 
poles. I got some, but unfortunately put two sticklebacks 
into the same tank, and in three days the tadpoles were all 
killed by these little fish eating off the tails of their black 
companions. 
One of our members reared a few tadpoles this summer, and 
from some cause or other he has had several deaths when 
nearing the perfect stage. He tells me that if he leaves a 
dead one in the dish the others immediately begin to eat 
it. This seems very strange, as, with me, when nearing the 
perfect state, they seemed to stop feeding, while after they — 
were matured they fed ravenously, swallowing worms nearly — 
as large as themselves. Can any other members of the ~ 
Society give their experiences of frog-hatching ? 
At this meeting Mr W. C. Crawford, President, read a 
paper entitled “The Excursions of a Field-Naturalist, with 
some Meditations thereon.” 
