Tempering Brass.
—If hammered too brittle brass can be tempered and made {133} of a more even hardness throughout by warming it, as in tempering steel; but the heat must not be nearly so great. Brass, heated to the blue heat of steel, is almost soft again. To soften brass, heat it nearly to a dull red and allow it to cool, or, if time is an object, it may be cooled by plunging into water.
Drawing Temper From Brass.
—Brass is rendered hard by hammering or rolling, therefore when a brass object requires to be tempered the material must be prepared before the article is shaped. Temper may be drawn from brass by heating it to a cherry red and then simply plunging it into water, the same as though steel were to be tempered.
BRASS, FASTENING PORCELAIN TO: See Adhesives.
BRASS POLISHES: See Polishes.
BRASS SOLDERS: See Solders.
BRASS BRONZING: See Plating.
BRASS CLEANERS: See Cleaning Preparations and Methods.
BRASS PLATINIZING: See Plating.
BRASS, SAND HOLES IN: See Castings.
BRASSING: See Plating.
BREAD, DOG: See Dog Biscuit.
BREATH PERFUMES:
See also Dentifrices.
Remedies For Fetid Breath.
—Fetid breath may be due to the expelled air (i.e., to disease of the respirational tract), to gases thrown off from the digestive tract, or to a diseased mouth. In the first two cases medication must be directed to the causative diseases, with the last, antisepsis principally and the neutralization of the saliva, also the removal of all residual food of dental caries.
| I.— | Potassium permanganate | 1 part |
|---|---|---|
| Distilled water | 10 parts |
Mix and dissolve. Add from 5 to 8 drops of this solution to a glass of water and with it gargle the mouth.
| II.— | Infusion of salvia | 250 parts |
|---|---|---|
| Glycerine | 30 parts | |
| Tincture of myrrh | 12 parts | |
| Tincture of lavender | 12 parts | |
| Labarraque’s solution | 30 parts |
Mix. Rinse the mouth frequently with this mixture.
| III.— | Decoction of chamomile | 30 parts |
|---|---|---|
| Glycerine | 80 parts | |
| Chlorinated water | 15 parts |
Mix. Use as a gargle and mouth wash.
| IV.— | Peppermint water | 500 parts |
|---|---|---|
| Cherry-laurel water | 60 parts | |
| Borax | 25 parts |
Mix and dissolve. Use as gargle and mouth wash.
| V.— | Thymol | 3 parts |
|---|---|---|
| Spirit of cochlearia | 300 parts | |
| Tincture of rhatany | 100 parts | |
| Oil of peppermint | 15 parts | |
| Oil of cloves | 10 parts |
Mix. Gargle and wash mouth well with 10 drops in a glass of water.
| VI.— | Salol | 5 parts |
|---|---|---|
| Alcohol | 1,000 parts | |
| Tincture of white canella | 30 parts | |
| Oil of peppermint | 1 part |
Mix. Use as a dentifrice.
| VII.— | Hydrogen peroxide | 25 parts |
|---|---|---|
| Distilled water | 100 parts |
Mix. Gargle the mouth twice daily with 2 tablespoonfuls of the mixture in a glass of water.
| VIII.— | Sodium bicarbonate | 2 parts |
|---|---|---|
| Distilled water | 70 parts | |
| Spirit of cochlearia | 30 parts |
Mix a half-teaspoonful in a wineglassful of water. Wash mouth two or three times daily.
BRICK STAIN.
To stain brick flat the color of brownstone, add black to Venetian red until the desired shade is obtained. If color ground in oil is used, thin with turpentine, using a little japan as a drier. If necessary to get the desired shade add yellow ocher to the mixture of red and black. If the work is part old and part new, rub the wall down, using a brick {134} for a rubber, until the surface is uniform, and keep it well wet while rubbing with cement water, made by stirring Portland cement into water until the water looks the color of the cement. This operation fills the pores of the brick and makes a smooth, uniform surface to paint on. Tinge the wash with a little dry Venetian red and lampblack. This will help bring the brick to a uniform color, so that an even color can be obtained with one coat of stain.
BRICKS: See Ceramics.
BRICKS OF SAND-LIME: See Stone, Artificial.
BRICK POLISHES: See Polishes.
BRICK WALLS, TO CLEAN: See Cleaning Preparations and Methods and Household Formulas.
BRICK WATERPROOFING: See Waterproofing.
BRICKMAKERS’ NOTES: See Ceramics.
BRIDGE PAINT: See Paint.
BRILLIANTINE: See Hair Preparations.
BRIMSTONE (BURNING): See Pyrotechnics.
BRIONY ROOTS: THEIR PRESERVATION: See Roots.
BRITANNIA METAL: See Alloys.
BRITANNIA METAL, TO CLEAN: See Cleaning Preparations and Methods.
BRITANNIA, SILVERPLATING: See Plating.
BROMINE, ANTISEPTIC: See Antiseptics.
BROMOFORM.
Bromoform is insoluble in dilute alcohol, but may be dissolved by the aid of glycerine. The following formula has been devised:
| Bromoform | 1 part |
| Alcohol | 2 parts |
| Compound tincture of cardamon | 2 parts |
| Glycerine | 1 1/2 parts |
Some other formulas are:
Syrup Of Bromoform.
—Bromoform, 5 parts; alcohol (95 per cent), 45 parts; glycerine, 150 parts; syrup, 800 parts. Mix in the order given and place the container in warm water until
