Varnish for Frames for Hot Beds

Mix 4 oz. of pul-verized white cheese, 2 oz. of slaked lime, and 4 oz. of boiled linseed oil. Mix, and add 4 oz. each of whites and yolks of egg, and liquefy the mixture by heat. This curious mixture is said to produce a pliable and transparent varnish.

Coloured Varnishes

Oil varnishes are coloured by grinding with them the most transparent colours, as distilled verdigris for green, etc. Spirit varnishes are also coloured with dragon's blood, gamboge, etc.

Sealing- Wax Varnish

Black or coloured sealing-wax broken small, and sufficient rectified spirit to cover it, digested till dissolved. An article called black lac is sold as an economical substitute for black sealing-wax.

Black Japan for Leather, etc

Boil together a gallen of boiled linseed oil, 8 oz. of umber, and 3 oz, of asphalturn. When sufficiently cool, thin in with oil of turpentine.

Japan for Tin-ware

1. Common copal varnish. 2. Dissolve copal 2 oz., and camphor 1 dr., in oil of turpentine 8 oz.

Brunswick Black

Melt 4 lbs. of asphaltum, and 2 lbs. of hot boiled linseed oil, and when sufficiently cool add a gallon of oil of turpentine.

Varnish for Gun Barrels, after browning them

Shell-lac 1 oz., dragon's blood 1/4 oz., methylated spirit a quart. Dissolve and filter.

Transfer Varnish

Alcohol 5 oz., pure Venice turpentine 4 oz., mastic 1 oz.

Hair Varnish

Dissolve 1 part of clippings of pigs' bristles, or of horsehair, in 10 parts of drying linseed oil by heat. Fibrous materials (cotton, flax, silk, &c), imbued with the varnish and dried, are used as a substitute for haircloth.

Glass Varnish

This is a solution of soluble glass, and should be thus made: - Fuse together 15 parts of powdered quartz (or of fine sand), 10 parts of potash, and 1 of charcoal. Pulverize the mass, and expose it for some days to the air; treat the whole with cold water, which removes the foreign salts, etc. Boil the residue in 5 parts of water until it dissolves. It is permanent in the air, and not dissolved by cold water. Used to protect wood, etc, from fire.

Vaselin

A proposed substitute for lard in the preparation of ointments, etc. See Pocket Formulary.

Vegetable Parchment

Be la Rue's Patent. Strong unsized paper is immersed for a few seconds in oil of vitriol, diluted with half its volume of water. It is then washed in pure water. It strongly resembles animal parchment, and is used for the same purposes. [The acid solution must be exactly of the strength indicated, and not warmer than the air around.]

Carbolic Vinegar

Crystallised carbolic acid 100 parts, acetic acid .900, powdered camphor 5 parts. Sprinkled in infected cabins on board ship. - Quesneville.

Washing Powders

These consist of soda-ash combined with gelatinous substances, as a solution of glue, linseed jelly, etc, dried and powdered.

Washing Liquids are chiefly solutions of caustic soda.

Water for Marine Aquarium

See Aquarium, Marine, Water for.

Hard Water

Dr. Clark's patent for softening). This consists simply in adding milk of lime to the water in the reservoir. It combines with free carbonic acid, which it precipitates as carbonate of lime, and at the same time causes the deposition of the carbonate of lime previously held in solution by that gas.