A 
JOURNAL 
OF 
NATURAL PHILOSOPHY, CHEMISTRY, 
AND 
THE ARTS. 
JUNE, 1813. 
ARTICLE I. 
Discussion on the Cause of the Figure of a Man, which was 
formed on the Ice of the Pond in Halnaker Park. In a Letter 
from Mr. Robert Harrup. 
To Mr. Nicholson. 
SIR, 
I TAKE the liberty of sending you a few observations on the Observations 
remarkable appearance in the ice on the pond at Halnaker on 
rr 1 markable ap- 
House, so minutely described in the last number of your pearance on 
the ice in the 
pond at 
Halnaker 
differ in opinion from a philosopher of your abilities and H° use * 
experience, it is with the greatest diffidence. If my conception 
of the cause is erroneous, I hope you will have the goodness to 
set me right. 
You are disposed to think, that the effect was cabsed by the TJmbody 
developement of heat in the body, occasioned by the putrefac- man did not 
tion or chemical change which must have taken place. I can- probably give 
not perceive how this supposition is to be maintained, when it out it?ai 
* Philosophical Journal XXXIV. 301. 
Vol.XXXV.—No. 102. G is 
Journal at the same time offering some remarks on your 
ingenious explanation of that singular phenomenon. If I 
