Foreign Commerce . 161 
lately been recommended by Guyton Morveau,?LS an effectual de- 
stroyer of putrid exhalation.] 
It is obvious, that after the pulp of coloured rags is well cleansed 
from impurities, and washed well, and the water let off, this liquor 
can be conveyed upon it, in a covered wooden cistern. The pulp 
must be stirred once or twice by means of a long wooden rake, and 
a hole made for the purpose in the cover. It should thus remain 
1 2 hours ; and then be well washed to carry off all the acid. 
The effect of this acid may be tried thus: into a strong six 
ounce vial, put a tea-spoonful of red lead, and 2 tea-spoonfulls o£ 
spirits of salt, mixed with as much water-put a piece of printed 
calico inside the vial, and close it in, by means of the cork— ■shake 
the vial to make the ingredients mix, and in a quarter of an hour 
the colours will be discharged by the vapour, or nearly so. T. Ch 
FOREIGN COMMERCE. 
THE following essay in substance and nearly in form was first 
pulished in the Northumberland and Sunbury Gazette, in June, 
1799 ; a second edition in 1800. The facts therefore are confined 
to that period. I republish it now, in conformity to my promise 
at the beginning of this number, because I am persuaded that all 
the leading principles of this paper are sound; and because it ie 
high time to bring the commercial system into full discussion. 
If we are to adopt it, let us understand it first. 
The measures necessary for defence, have also altered my 
opinion as to the propriety of introducing home-manufacture, and 
establishing a navy. If any reliance could be placed on the poii- 
ticai integrity of Great Britain, I would not put pen to paper to- 
ward the introduction of Manufactures. We should be prosper- 
ous and happy enough as an agricultural country ; but I fear no 
such reliance is to he placed on any government swayed by the 
principles of mercantile policy, whether there or here. In this 
opinion, I am not singular. 
I consider it as against the interest of a country, to give parti- 
cular encouragement to any employment of capital whatever ; not 
even to agricultural investments. The calculating foresight of 
individuals, actuated and guided by the light of interest, will dis- 
