Sir Everard Home's additional pooofs , &c. 6 1 
the time of the experiment in 1824, it was 66 °, in 1825, 84°, 
a difference of 18 0 . 
This experiment was begun on the 12th of July, 1825, at 
three o'clock. The temperature of the atmosphere was 84°, 
that of both horns exactly 98 §-°. Immediately after Mr. Mayo 
had divided the nerves, the heat of that horn was diminished 
to 93l°, and the heat of the other encreased to 99 0 . 
The following register, showing the changes that took 
place in the temperature of the horns and atmosphere, was 
regularly filled up every day at three o'clock. 
Day 
of July. 
Heat of 
Atm. 
Heat of Horn 
operated on. 
Heat of the 
other Horn. 
12th 
84° 
93 i° 
99 ° 
13th 
84 
93 
9 8 
14th 
84 
93 
loo 
15th 
85 
96 
99 
16th 
86 
97 
99 i 
17th 
86 
97 
99 
18th 
86 
9 of 
98 
19th 
86 
. 97 
99 
20th 
8 5 
97 
99 
21st 
75 
95 
97 
22d 
76 
93 
93 
23d 
74 
93 
93 
After the two horns had become of the same temperature 
the buck was allowed to join the herd. On the 28th of July 
it was killed for the use of the table, which gave me an op- 
portunity after death of examining the parts that had been 
operated on. The horns had not shed their velvet, were 
exactly of the same size, and equal in solidity. 
