344) Dr Stanley on the Antiseptic Power of Pyrolignous Acid. 
and at the same time proves that in detaching the two portions 
from one another, no part of the second variety remained adhe- 
ring to the first, as it must have become sensible by enfeebling 
the polarising power, if not by altering the tints. 
( To he cmcluded in next Number.) 
' Art, XVI, the Antiseptic Power of the Pyrolignous Acid 
upon Fresh Meat^ subjected to a Sea Voyage and a Hot Cli- 
mate, By J. Stanley, M, D. In a Letter to Dr Brewster. 
As I am not aware that any experiments have as yet been 
published, wherein meat preserved by means of the pyrolignous 
acid was subjected to the test of a sea voyage and a hot climate, 
I have taken the liberty of sending you an account of the follow- 
ing trial, if you deem it worth your notice. 
Having previously made several experiments with the above 
named acid, the results of which were favourable, on the 6th of 
October 1819, I prepared two pieces of fresh meat (beef) with 
tlie purified acid, applying it lightly over their surfaces by 
means of a small brush. After hanging up in my kitchen till 
the 12th of November following, I gave one of the specimens to 
the captain of a vessel bound for the West Indies, with direc- 
tions tp observe and note any change that might take place du^* 
ring his voyage, and to bring it back to me on the return of his 
ship to port. In the month of October 1820 he restored me 
the specimen. He had examined it several times on the voyage 
out, and during his stay of some months at the Island of To- 
bago, as did several gentlemen resident there, but no perceptible 
change could be detected. On comparing it with the specimen 
kept at home, I could observe no sensible difference in their ap- 
pearance. On the 21st December following, I caused both to 
be thoroughly boiled, and, when served up, they wpre declared 
by several gentlemen who tasted them with me, to be perfectly 
fresh and sweet, and, Avith the addition of salt and vegetables, a 
palatable and wholesome dish. 
- The above experiment I think fully proves the antiseptic 
powers of the pyrolignous acid, my specimens having been pre- 
served for the space of fqurteen months, and one of them sub- 
