Part 309

NERVINE OINTMENT: See Ointments.

NESSELRODE PUDDING: See Ice Creams.

NETS: See Cordage.

«NICKEL-TESTING.»

Pure nickel will remain nearly white, while “patent nickel,” or nickel-copper will not retain its primitive brilliancy, but soon becomes slightly oxidized and grayish in color. The magnet furnishes a good means of testing. The unadulterated nickel is distinctly sensitive to magnetism, while that much alloyed is destitute of this property.

NICKEL ALLOYS: See Alloys.

NICKEL, TO REMOVE RUST FROM: See Cleaning Preparations and Methods.

NICKEL-PLATING: See Plating.

NICKEL STEEL: See Steel.

NICKELING, TEST FOR: See Plating. {482}

NIELLO: See Steel.

NITROGLYCERINE: See Explosives.

NOYAUX LIQUEUR: See Wines and Liquors.

NUT CANDY STICKS: See Confectionery.

NUTMEG CORDIAL: See Wines and Liquors.

NUTMEG ESSENCE: See Essences and Extracts.

OAK: See Wood.

ODONTER: See Dentifrices.

«Oils»

«Clock Oil.»—Put 2,000 parts, by weight, of virgin oil in a decanting vessel, add a solution of 40 parts of ether tannin in 400 parts of water and shake until completely emulsified. Let stand for 8 days, with frequent shaking; next, add 100 parts of talcum and, when this has also been well shaken, 1,600 parts of water. Allow to settle for 24 hours, and then run off the lower water layer, repeating the washing as long as the wash water still shows a coloration with ferric chloride. Pour the contents of the decanting vessel into an evaporating dish; then add 200 parts of thoroughly dried and finely ground cooking salt; let stand for 24 hours and filter through paper. The clock oil is now ready, and should be filled in brown glass bottles, holding 20 to 25 parts (about 1 ounce), which must be corked up well and kept at a cool temperature.

«COD-LIVER OIL:»

«Aromatic Cod-Liver Oil.»—

Coumarin 0.01 parts Saccharine 0.50 parts Vanillin 0.10 parts Alcohol, absolute 5.40 parts Oil of lemon 5.00 parts Oil of peppermint 1.00 part Oil of neroli 1.00 part Cod-liver oil to make 1,000 parts

«Deodorized Cod-Liver Oil.»—Mix 400 parts of cod-liver oil with 20 parts of ground coffee and 10 parts of bone black, warm the mixture in an open vessel to 140° F., let it stand 5 days, shaking occasionally, and strain through linen. The oil acquires the taste of coffee.

«Cod-Liver Oil Emulsions.»—

I.—Calcium hypophosphite 80 grains Sodium hypophosphite 120 grains Sodium chloride 60 grains Gum acacia, in powder 2 ounces Elixir of glucoside 20 minims Essential oil of almonds 15 minims Glycerine 2 fluidounces Cod-liver oil 8 fluidounces Distilled water, a sufficient quantity to produce 16 fluidounces.

II.—Mix 190 parts of powdered sugar with 5 parts of acacia and 500 parts of tragacanth in a mortar. Mix in a large bottle and shake thoroughly together 500 parts of cod-liver oil and 200 parts of a cold infusion of coffee. Gradually add a part of this mixture to the powder in the mortar and triturate until emulsified. To the remaining liquid mixture add 100 parts of rum, then gradually incorporate with the contents of the mortar by trituration.

«Extracting Oil from Cottonseed.»—Claim is made for a process of extraction, in an English patent, in which the seeds are placed in a rotable vessel mounted on a hollow shaft divided into compartments by means of a partition. The solvent is introduced at one end of this shaft and passes into the vessel, which is then made to rotate. After the extraction the bulk of the solvent and the extracted oil pass away through an exit pipe, and steam is then introduced through the same opening as the solvent, in order to cook the seeds and expel the residual solvent. The steam and the vapors pass through perforations in a scraper fixed to the shaft and thence through connected pipes into the other compartment of the shaft, the end of which is attached to a condenser.