thoroughly blended take the mixture off the fire; 
then stir in the arsenic, and finally the camphor, 
the last ingredient being added when the mixture is 
nearly cold. This mixture is, of course, deadly 
poison, and therefore the utensils used in its pre- 
paration should never be employed for any other 
purpose. When using, it should be worked up to a 
lather of the consistency of thick cream, and applied 
to the inside of the skin with a hog’s hair brush. 
Corrosive sublimate (bi-chloride of mercury) 
dissolved in spirits of wine, is another preparation. 
It is an excellent preservative, and has the advant- 
age of being much cleaner to use than arsenical 
soap. The solution should be reduced to just such 
a strength, that when a black feather has been 
dipped in it no sediment is discernible when the 
spirit has evaporated. It is also a powerful poison, 
and great care should be exercised in its use. 
For the benefit of those who do not care to tamper 
with poisons, [ give two perfectly harmless com- 
positions, invented by Mr. Montague Browne. The 
one, popularly known as  Browne’s Preservative 
Soap, is prepared as follows:— Take 
| Whiting, 14lbs. 
White curd soap, 4lb. 
Chloride of lime, 4oz. 
Tincture of musk, }oz. 
Water, I pint. 
Shred the soap and boil it with the whiting and 
water, stirring till thoroughly mixed. When the 
mixture attains the consistency of thick cream, take 
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