vegods Brown Karnish, weegsta Rectified spirit 2 gallons; sandarach 3 pounds; shell-lac 2 pounds; pale turpentine varnish 1 quart. Put them into a tin bottle, cork securely, and agitate frequently, placing the tin occasionally in hot water till the gum is dissolved, then add a quart of pale turpentine varnish, heal you! Brilliant Amber Spirit Varnish. Fused amber 4 oz, sandarach 4 oz,; mastic 4 oz.; highly recof a sand bath, with tified spirit 1 quart. Expose toer is fused in a close occasional agitation, till dissolved. which passes copper vessel, having a funnel-shaped projection, buy stages To Chinese Varnish. Mastic 2 oz.; sandarach 2 oz. rectified spirit 1 pint. Close the matrass with bladder, with a pin hole for the escape of vapor; heat to boiling in a sand or water bath, and when dissolved strain through linen. Picked mastic 4 oz.; oz Digest, and filter. Crystal Varnish, rectified spirit 1 pint; animal charcoal 1 saraula quo dagl drachm; pounded glass 4 oz.; rectified oil of turpentine 3 pints. This is for oil paintings. Chio turpentine 2 oz.; mastic 12 oz; camphor tanpa di Canada Varnish. Ola- 848 Luula armulb tom Clear balsam of Canada 4 oz.; camphene Oz. Warm gently, and shake together till dissolved. This varnish is for maps, drawover with a solution of isinglass, ings, &c., which must be covered. When dry, the varnish is taking care that every brushed over it. 18 2 Tingry's Essence Varnish, Powdered mastic 12 oz ; pure turpentine 13 oz ; camphor oz.; powdered glass 5 oz.; rectified oil of turpentine 1 quart. Common Turpentine Varnish, jeling at udend This i is merely clear pale resin, dissolved in oil of turpentine'; usually 5 pounds of resin to 7 pounds of turpentine. se dogad bbit Lav zait got 7 y Amber Varnish, u to Amber 16 oz.; melt in an iron pot, and add pint of drying linseed oil, boiling hot, and add 3 oz. resin, and 3 oz. asphalte, each in fine powder Str remove from the fire, and ad are thoroughly tine, of warm oil of Balloon Varnish. Melt india-rubber in small pieces with its weight of boiled linseed oil, and thin it with oil of turpentine. R Varnish for Engraving on Copper. 95 Yellow wax 1 oz mastic 1 oz.; asphaltum oz, Melt, pour A softer varnish for into water, and form into balls for use. U engravers is made thus: Tallow 1 part, and 2 of yellow wax; or, with 2 oz wax, 1 drachm common turpentine, and 1 drachm olive oil. Listen Etching Varnishesfelt th wax 2 oz.; asphaltum 2 oz. the wax in a clean the asphaltum in powder, and boil to proper con sistence. Pour it into warm water, and form it into balls, which must be kneaded, and put into taffeta for use." bolood 2 luxasy odulo de Another White wax 2 oz.; Burgundy pitch + oz; black pitch ‡ oz.; melt together, and add by degrees 2 oz. powdered asphaltum, and boil it till a drop cooled on a plate becomes brittle. Another Equal quantities of linseed oil and mastic, melted together.`-Engraving Mixture for Writing on Steel.ail du monde Pulverize sepaSulphate of 1 copper oz. sal ammoniacoz rately, adding a little vermilion to color it, and mix with 14 oz. vinegar. Rub the steel with soft soap, and write with a hard, clean pen, without a slit, dipped in the mixture. Etching Fluids, For COPPER.1. Aquafortis 2 oz.; water 5 oz. Mix. 2. Callot's Eau Forte for Fine Touches-Dissolve 4 parts each of verdigris, alum, sea salt, and sal ammoniac, in 8 parts vinegar; add parts water, boil for a minute, and let it cool. 16 For STEEL 1. Iodine 1 oz.; iron filings drachm; water 4 oz. Digest till the iron is dissolved. 2. Pyroligneous acid 4 parts by measure; alcohol 1 part. Mix, and add 1 part double aquafortis (sp. gr. 1-28). Apply it from 14 to 15 minutes. Varnish for Engraving on Glass. Wax 1 oz. mastic oz. asphaltum 1 oz., turpentine drachm. AmbanpassAnother piiloon po oil of spike 4. Mastic 15 parts; turpentine 7; oil Le Blond's Varnish. Keep 4 pounds balsam of copaiya warm in a sand or water bath, and add 16 oz. of copal, previously fused and coarsely powdered, by single ounces, daily, and stir it frequently. When dissolved add a little Chio turpentine.e for porr an ni siam Sealing Wax Varnish. Á ''''' Black or colored sealing wax, broken small, and sufficient rectified spirit to cover it; digest till dissolved. Boil together a Black Japan. gallon of boiled linseed oil, 8 oz. umber, and 3 oz asphaltum. When sufficiently cool thin it with oil of turpentine. Brunswick Black. Melt 4 pounds asphaltum, add 2 pounds hot linseed oil, and when sufficiently cool add 1 gallon oil of turpentine. Varnish for Gun Barrels, after browning them.' Shell-lac 1 oz ; dragon's blood oz.; rectified spirit 1 quart. Dissolve and filter. Transfer Varnish. Alcohol 5 oz ; pure Venice turpentine Hair Varnish. oz.; mastic 1 oz. Dissolve 1 part of clippings of pigs' bristles, or 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 hair cloth. Glass Varnish. This is a solution of soluble glass, and is thus made: Fuse together 15 parts powdered quartz (or fine sand), 10 parts potash, and 1 charcoal. Pulverize the mass, and expose it for some days to the air; treat the whole with cold water, which removes the foreign salts, &c.; boil the residue in 5 parts of water until it dissolves. It is permanent in the air, and not dissolved by water. This varnish is used to protect wood, &c., from fire. Varnish for Gilded Articles. Gum-lac 4 parts; dragon's blood 4; annatto 4; gamboge 4; saffron 1. Dissolve each resin separately in 8 parts alcohol, and make a separate tincture with the dragon's blood and annatto, also in 8 parts alcohol each; then mix the former together, and add a sufficient quantity of the tinctures to give the required shade and color to the varnish. Turmeric 1 drachm; gamboge 1 drachm; oil of turpentine 2 pints; shell-lac 5 ounces; sandarach 5 oz.; dragon's blood 7 drachms; thin mastic varnish 8 oz. Digest, with occasional agitation, for fourteen days, in a warm place; then set it aside to fine, and pour off the clear. Another. Dutch leaf 1 part; gamboge 4; gum dragon 4; proof spirit 18. Macerate for twelve hours, then grind on a stone slab. Varnish for Water Color Drawings. Canada balsam 1 pint; oil of turpentine 2 parts, mixed. Size the drawing before applying the varnish. Earthenware Varnish. Flint glass 1 part; soda 1. Mix. Magilp. Mastic varnish 1 part; drying oil 2. Mix. Mix. Equal parts of mastic varnish, drying oil, and turpentine. Mix. Metallic Varnish for Couch litharge 9 pounds; red Asphaltum 56 pounds. Melt, then Work, &c. lead 7 pounds; boil, then add boiled oil 12 gallons; yellow resin 12 pounds. Again boil, until in cooling the mixture may be rolled into pills; then add spirit of turpentine 30 gallons; lampblack 7 pounds. Mix well. Impermeable Varnish. Boiled oil 100 parts; finely powdered litharge 6 parts; genuine beeswax 5 parts. Boil until sufficiently thick and stringy, then pour off the clear. Engravers Stopping-out Varnish. Take lampblack and turpentine to make a paste. Weight of Metals—Wrought Iron, Square, Round, and Flat. Table I. contains the weight of Square Iron in sizes, from ₫ inch to six inches square, advancing by inch; and from 6 to 12 inches square, advancing by inch; and in lengths, from I foot to '18 feet. The sizes are arranged in the first column of each page, and the lengths along the top; the weight in lbs. immediately under the lengths, and in a line with the sizes. Table II. contains the weight of Round Iron in sizes from inch to 6 inches diameter, advancing by inch; and from 6 to 12 inches diameter, advancing by inch; and in lengths, from 1 foot to 18 feet. The sizes, lengths, and weights are arranged as in Table I. Table III. contains the weight of Flat Iron in widths, from inch to 6 inches diameter, advancing by inch; in thicknesses, from inch to 1 inch, advancing by inch; and in lengths, from 1 to 18 feet. The widths, lengths, and weights are arranged as in the preceding tables, and the thicknesses alongside of the widths. The tables are all calculated to the nearest tenth of a pound. To the weights of bars of Wrought Iron addth part for bars of soft steel; and from the same weights subtract 4th part for bars of Cast Iron. 27-0 406 641 67-6 81:1 946 108.2 121-7 15:3 30.5 45-8 611 763 91:6 1068 122-1 137-4 21 17.1 68-4 19.1 38.1 57-2 763 21.1 20 21 23.3 46.6 69.9 93.2 116.5 139.8 163:0 186:3 209.6 25.6 51.1 76-7 102 2 127-8 1534 178-9 204-5 2300 30.4 60.8 91-2 1217 1521 1825 212.9 243.3 273-7 31 33:0 66.0 99.0 132.0 1651 1981 2311 2641 297.1 31 35.7 714 107.1 142.8 1785 2142 2499 2856 321.3 38.5 770 115.5 154-0 192.5 2310 2695 3080 346.5 |