REMARKS ON BROWN MIXTURE. 
289 
would require 13§ ounces to produce 4. But as we may sup- 
pose the quantity obtained by Mr. G. is the maximum pro- 
duct, and from liquorice of the best quality, and as that which 
we receive here is more or less old, and sometimes of impaired 
quality, we have lowered the standard so as to ensure an equal 
amount of extract from a greater quantity of substance. 
The object of the liquorice extract mixed with the root is 
to impart the requisite degree of color. 
The addition of the paregoric to the solution renders it 
slightly turbid at first, but it becomes clear soon after. 
Brown mixture, thus prepared, is limpid, very sweet to 
the taste, of a deep reddish-brown color, and may be kept for 
an indefinite period without spoiling. 
VOL. V. NO. IV. 
37 
