C *> 1 
IV. Additional proofs of animal heat being influenced by the 
nerves. By Sir Everard Home, Bart. V . P. R. S . 
Read November 1 6 , 1825. 
The conclusions drawn from my experiment upon the 
deer’s horns, published in the last volume of the Philoso- 
phical Transactions, are so important, that I felt it a duty to 
repeat the experiment in the ensuing season. 
This I have done, and have the satisfaction to find that 
the result agrees in every respect with that drawn from the 
first experiment. 
For the present experiment, I was furnished with a buck of 
full head, seven years old, and in good condition; the former 
not having suffered from what was done in any respect 
whatever. 
As several disadvantages had arisen in the former experi- 
ment from the horns having been bored ; they were now pre- 
vented by applying a cincture of knitted worsted round that 
part of the palm, the heat of which was to be ascertained, 
three inches broad ; and the. bulb of the thermometer was 
received between this and the velvet of the horn. As soon as 
the temperature was taken, the cincture was removed. All 
liability to external injury was precluded, by confining the 
animal in a stable. 
A circumstance favourable to put the result of this experi- 
ment to the severest test was, the heat of the atmosphere 
being very different from that in the former season ; during 
