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the finking of the vital powers; and its feet were frozen; 
but we were not able to keep up the cold a fufficient time 
to freeze the whole animal, its hair being fuch a bad con- 
du61or of heat, that the confumption was not more, than 
the animal powers were capable of fupportingf'^^. 
III. The third experiment was made upon another 
dormoufe. From the failure of the laid experiment, I 
took care that the hair fhould not a fecond time be an 
obftruclion to the fuccefs of our experiment. I there- 
fore firll: wetted it all over, that the heat of the animal 
might be more inftantaneoully carried off; and then it was 
put into the leaden veffel. The whole was put into the 
cold mixture as before. The animal foon gave figns of its 
feeling the cold, by repeated attempts to make its efcape. 
The breath, and the evaporating water from its body 
wxre foon frozen, and appeared like a hoar-froft on the 
fides of the veffel, and on its whifkers; but while the vi- 
gour of life lafted, it defied the approach of the cold. 
However, from the hair being wet, and thereby rendered 
a good condu61or of heat, there was a much greater con- 
fumption of it than in the former experiment. This 
haftened on a diminution of the power of producing it. 
The animal died, and foon became fliff; upon thawiilg 
it, we found it was dead. 
(b) Thefe’ experiments were made in prefence of Dr. george fordyce 
and Dr. erwin, teacher of Chemiftry at Glafgow ; the latter of whom came 
in accidentally is the middle of our operations. . ^ 
IV. Tilt 
O O o 2 
