Part 222

FLUXES USED IN ENAMELING: See Enameling.

FLUXES FOR SOLDERING: See Soldering.

«Fly-Papers and Fly-Poisons»

(See also Insecticides.)

«Sticky Fly-Papers.»—The sticky material applied to the paper is the following:

I.—Boiled linseed oil 5 to 7 parts Gum thus 2 to 3 parts Non-drying oil 3 to 7 parts

For the non-drying oil, cottonseed, castor, or neatsfoot will answer—in fact, any of the cheaper oils that do not readily dry or harden will answer. The proper amount of each ingredient depends upon the condition of the boiled oil. If it is boiled down very stiff, more of the other ingredients will be necessary, while if thin, less will be required.

II.—Rosin 8 parts Rapeseed oil 4 parts Honey 1 part

Melt the rosin and oil together, and incorporate the honey. Two parts of raw linseed oil and 2 parts of honey may be used along with 8 parts of rosin instead of the foregoing. Use paper already sized, as it comes from the mills, on which to spread the mixture.

III.—Castor oil 12 ounces Rosin 27 ounces

Melt together and spread on paper sized with glue, using 12 ounces glue to 4 pints water.

IV.—Rosin 8 ounces Venice turpentine 2 ounces Castor oil 2 ounces

Spread on paper sized with glue.

«Poisonous Fly-Papers.»—

I.—Quassia chips 150 parts Chloride of cobalt 10 parts Tartar emetic 2 parts Tincture of long pepper (1 to 4) 80 parts Water 400 parts

Boil the quassia in the water until the liquid is reduced one-half, strain, add the other ingredients, saturate common absorbent paper with the solution, and dry. The paper is used in the ordinary way.

II.—Potassium bichromate 10 ounces Sugar 3 drachms Oil of black pepper 2 drachms Alcohol 2 ounces Water 14 ounces

Mix and let stand for several days, then soak unsized paper with the solution.

III.—Cobalt chloride 4 drachms Hot water 16 ounces Brown sugar 1 ounce

Dissolve the cobalt in the water and add the sugar, saturate unsized paper in the solution, and hang up to dry.

IV.—Quassia chips 150 parts Cobalt chloride 10 parts Tartrate antimony 2 parts Tincture of pepper 80 parts Water 400 parts

Boil chips in the water until the volume of the latter is reduced one-half, add other ingredients and saturate paper and dry.

«Fly-Poison.»—

Pepper 4 ounces Quassia 4 ounces Sugar 8 ounces Diluted alcohol 4 ounces

Mix dry and sprinkle around where the flies can get it.

«Non-Poisonous Fly-Papers.»—I.—Mix 25 parts of quassia decoction (1:10) with 6 parts of brown sugar and 3 parts of ground pepper, and place on flat dishes.

II.—Mix 1 part of ground pepper and 1 part of brown sugar with 16 parts milk {348} or cream, and put the mixture on flat plates.

III.—Macerate 20 parts of quassia wood with 100 parts of water for 24 hours, boil one-half hour, and squeeze off 24 hours. The liquid is mixed with 3 parts of molasses, and evaporated to 10 parts. Next add 1 part of alcohol. Soak blotting paper with this mixture, and put on plates.