Part 405

SCALE INSECTS, EXTERMINATION OF: See Insecticides.

SCALP WASHES: See Hair Preparations.

SCISSORS HARDENING: See Steel.

SCOURING LIQUIDS: See Laundry Preparations.

SCRATCH BRUSHING: See Plating, under Gilding.

«SCREWS:»

«To Prevent Screws from Rusting and Becoming Fast.»—Screws will sometimes rust in their seats, even when carefully oiled before driving them to their seats, but if they are anointed with a mixture of graphite and soft tallow they will remain unrusted and unaltered for years.

A screw rusted in may also be removed by placing the flat extremity of a red-hot rod of iron on it for 2 or 3 minutes. When the screw is heated, it will be found to turn quite easily.

SCREWS, BLUEING: See Steel.

SCREWS IN WATCHES: See Watchmakers’ Formulas. {630}

SEALING (BURNING) TRICK: See Pyrotechnics.

SEALING WAX: See Waxes.

«SEA SICKNESS.»

I.—To prevent sea sickness, take 2 or 3 grams of potassium bromide dissolved in plain or carbonated water every evening either with supper or just before retiring for several weeks before going on the voyage. During the voyage, breathing should be deep and a tight bandage should be worn around the abdomen.

II.—Menthol 0.1 part Cocaine hydrochloride 0.2 parts Alcohol 60.0 parts Syrup 30.0 parts

A dessertspoonful to be taken at intervals of half an hour.

SEASONINGS: See Condiments.

SEED, BIRD: See Bird Foods.

SEEDS, TESTS FOR FOREIGN: See Foods.

SEIDLITZ POWDERS: See Salts (Effervescent).

SELTZER WATER: See Water.

«SERPENTS, PHARAOH’S.»

An old form consisted of pellets of a very poisonous mercurial compound which gave off dangerous fumes when heated. The “eggs” may be made of comparatively safe material by the following formula:

Potassium bichromate 2 parts Potassium nitrate 1 part White sugar 2 parts

Powder each ingredient separately, mix, and press into small paper cones. These must be kept from light and moisture.

Of course, neither this nor other chemical toys containing substances in the slightest degree harmful if swallowed should be placed in the hands of children not old enough fully to understand the danger of eating or even tasting unknown things.

SERVIETTES MAGIQUES: See Polishes.

SETTING OF TOOLS: See Tool Setting.