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1. Ferric
chloride
.
4 parts
Zinc chloride
..
. 5 parts
Aluminum chloride
..
.. 5 parts
Calcium chloride
.
.. 4 parts
Manganese chloride
. 3 parts
Water
..
69 parts
If desired, 10
grains Thymol and 2 fluidrachm oil of rosemary, previously dissolved in
about 12 fluidrachm of alcohol, may be added to each gallon.
2.
Alum
.
10 parts
Sodium carbonate
. 10 parts
Ammonium chloride
..
2 parts
Sodium chloride
.
2 parts
Zinc chloride
.. 1 part
Hydrochloric acid,
sufficient.
Water
. 100 parts
Dissolve the alum in about 50 part boiling water and add the scdium
carbonate. The resulting precipitate of aluminum hydrate dissolve with the
aid of just sufficient hydrochloric acid, and add the other ingredients
previously dissolved in the remainder of the water.
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