THE THERMOMETER AS A COMPANION IN DAILY LIFE. 377 
of observations will prove the effect of rapidly removing the 
clothes at 10.30. 
Time 
Temperature 
Time 
Temperature 
10-15 
99-15 
10-40 
99-125 
10-20 
99-15 
10-45 
99-175 
10-25 
99-15 
10-50 
99-175 
10-30 
99-125 
10-55 
99-175 
10-35 
99025 
11 P.M. 
99-175 
From this Table it will be seen that the effect of stripping is, 
in this case, only to produce a rise in the temperature of 0*05°, 
which is scarcely worthy of note. Such being the case, and it 
being evident that the removal of the clothes has altered the 
heat relations of the subject of experiment to external objects, 
some physiological influence must have come into play to reduce 
the superficial conducting power of the body, so that the loss of 
the clothing shall be made up for. Cold to the surface con- 
tracts the vessels of the corium, as can be readily proved by 
placing a piece of ice on the warm hand, when the place on 
which it has rested becomes pale. The cooling effect of the air 
at 70° must, therefore, have produced just sufficient contraction 
of the cutaneous vessels to compensate for the removal of the 
badly conducting clothing. 
I chose an atmospheric temperature of 70° for this illustra- 
tion purposely, in order to show this negative result, as it may 
be termed. At higher external temperatures the complicating 
influences of perspiration have to be taken into account ; and 
they are slightly perceptible in the above instance, the fall of 
temperature at 10*35 being caused by the evaporation of the 
moisture from the skin, which was previously retained there by 
the clothing. 
Time 
Temperature 
Temp, of Air 
Time 
Temperature 
Temp, of Air 
11-15 
98-95 
4 
11-15 
98-8 
1 
11-20 
11-20 
11-25 
98-975 
11-25 
98-8 
11.30 
98-975 
11-30 
98-8 
11-35 
11*35 
11-40 
99-3 
-47° 
11-40 
99- 
-52° 
11-45 
99-35 
11-45 
11-50 
99-575 
11-50 
99-35 
11-55 
99-625 
11-55 
12 night 
99-7 
12 night 
99-375 
12-5 
99-675 
J 
Str 
ipped at 11.30 
Stri 
ipped at 11.30 
Rise 0 -725 
Rise 0°-575 
