exhausting
the water, deprives them at once of motion and sustenance, the practical
effect must be the same as when the frost of a northern winter encases
them in ice. Nor is it difficult to believe that they can successfully
undergo the one crisis when we know beyond question that they may
survive the other.[1]

[Footnote 1: YARRELL, vol. i. p. 364, quotes the authority of Dr. J.
Hunter in his _Animal OEconomy_, that fish, "after being frozen still
retain so much of life as when thawed to resume their vital actions;"
and in the same volume (_Introd._ vol. i. p. xvii.) he relates from
JESSE'S _Gleanings in Natural History_, the story of a gold fish
(_Cyprinus auratus_) which, together with the water in a marble basin,
was frozen into one solid lump of ice, yet, on the water being thawed,
the fish became as lively as usual Dr. RICHARDSON, in the third vol. of
his _Fauna Borealis Americana_, says the grey sucking carp found in the
fur countries of North America, may be frozen and thawed again without
being killed in the process.]

_Hot-water Fishes_.--Another incident is striking in connection with the
fresh-water fishes of Ceylon. I have mentioned elsewhere the hot springs
of Kannea, in the vicinity of Trincomalie, the water in which flows at a
temperature varying at different seasons from 85 deg. to 115 deg. In the
stream formed by these wells M. Reynaud found and forwarded to Cuvier
two fishes which he took from the water at a time when his thermometer
indicated a temperature of 37 deg. Reaumur, equal to 115 deg. of
Fahrenheit. The one was an Apogon, the other an Ambassis, and to each,
from the heat of its habitat, he assigned the specific name of
"Thermalis."[1]

[Footnote 1: CUV. and VAL., vol. iii. p. 363. In addition to the two
fishes above named, a loche _Cobitis thermalis_, and a carp, _Nuria
thermoicos_, were found in the hot-springs of Kannea at a heat 40 deg.
Cent., 114 deg. Fahr., and a roach, _Leuciscus thermalis_, when the
thermometer indicated 50 deg. Cent., 122 deg. Fahr.--_Ib_. xviii.
p. 59, xvi. p. 182, xvii. p. 94. Fish have been taken from a hot spring
at Pooree when the thermometer stood at 112 deg. Fahr., and as they
belonged to a carnivorous genus, they must have found prey living in the
same high temperature.--_Journ. Asiatic Soc. Beng_. vol. vi. p. 465.
Fishes have been observed in a hot spring at Manilla which raises the
thermometer to 187 deg., and in another in Barbary, the usual
temperatu