I

Calcium chloride. 184 parts Magnesium chloride........... 57 parts

Sodium chloride.. 13 parts Potassium bromide ......... 22 parts

Barium chloride. .         3 parts

Water to make. .. 1,000 parts

Dissolve and fill into hand grenades.

II

Iron sulphate..... 4 parts

Ammonium sulphate.......... 16 parts

Water............ 100 parts

Mix, dissolve, and fill into flasks.

III

Sodium chloride. . .   430 parts

Alum............   195 parts

Glauber salts......     50 parts

Sodium carbonate,

impure.........     35 parts

Water glass.......   266 parts

Water............   233 parts

Mix, etc.

IV

Sodium chloride. .. 90 parts Ammonium chloride ........... 45 parts

Water.,.......... 300 parts

Mix, dissolve, and put into quart flasks of very thin glass, which are to be kept conveniently disposed in the dwelling rooms, etc., of all public institutions.

V

Make 6 solutions as follows: a.—

Ammonium chloride..... 20 parts

Water.........2,000 parts

b.

Alum, calcined

and powdered 35 parts

Water.........1,000 parts

c

Ammonium sulphate, powdered........ 30 parts

Water......... 500 parts

d

Sodium chloride 20 parts

Water.........4,000 parts

e

Sodium carbonate .......... 35 parts

Water......... 500 parts

f

Liquid water glass........ 450 parts

Mix the solutions in the order named and to the mixture, while still yellow and turbid, add 2,000 parts of water, and let stand. When the precipitate has subsided fill off the clear liquid into thin glass (preferably blue, to deter decomposition) containers each of 3 pints to a half gallon capacity.

VI

Calcium chloride..   30 parts Magnesium chloride...........   10 parts

Water...........   60 parts

VII

Sodium chloride.. 20 parts Ammonium chloride........... 9 parts

Water........... 71 parts

VIII

Sodium carbonate 16 parts Sodium chloride. 64 parts Water..........920 parts

The most effective of all extinguishers is ammonia water. It is almost instantaneous, in its effect, and a small quantity only is required to extinguish any fire. Next in value is carbonic acid gas. This may be thrown from siphons or soda-water tanks. The vessel containing it should be thrown into the fire in such a way as to insure its breaking.