Henley's Twentieth Century Formulas, Recipes and Processes. Various

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СКАЧАТЬ oil2 ounces

      Mix the solids, grinding to a coarse powder, and incorporate the oil.

      Food For Redbirds.—

Sunflower seed	8 ounces
Hemp seed	16 ounces
Canary seed	10 ounces
Wheat	8 ounces
Rice	6 ounces

      Mix and grind to coarse powder.

      BIRD LIME: See Lime.

      BIRD PASTE: See Canary-Bird Paste.

      BISCHOFF: See Wines and Liquors.

      BISCUIT, DOG: See Dog Biscuit.

      BISMUTH ALLOYS: See Alloys.

      BISMUTH, PURIFICATION OF: See Gold.

      BITTERS: See Wines and Liquors.

      BITTER WATER: See Waters.

      BLACKING FOR HARNESS: See Leather.

      BLACKING FOR SHOES: See Shoedressings.

      BLACKING, STOVE: See Stove Blackings and Polishes.

      BLACKBERRY CORDIAL AND BLACKBERRY MIXTURE AS A CHOLERA REMEDY: See Cholera Remedy.

      BLACKBOARD PAINT AND VARNISH: See Paint and Varnish.

      BLACKHEAD REMEDIES: See Cosmetics.

      BLANKET WASHING: See Household Formulas.

      BLASTING POWDER: See Explosives.

BLEACHING

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      Linen.

      —Mix common bleaching powder in the proportion of 1 pound to a gallon of water; stir it occasionally for 3 days, let it settle, and pour it off clear. Then make a lye of 1 pound of soda to 1 gallon of boiling water, in which soak the linen for 12 hours, and boil it half an hour; next soak it in the bleaching liquor, made as above; and lastly, wash it in the usual manner. Discolored linen or muslin may be restored by putting a portion of bleaching liquor into the tub wherein the articles are soaking.

      Straw.

      —I.—Dip the straw in a solution of oxygenated muriatic acid, saturated with potash. (Oxygenated muriate of lime is much cheaper.) The straw is thus rendered very white, and its flexibility is increased.

      II.—Straw is bleached by simply exposing it in a closed chamber to the fumes of burning sulphur. An old flour barrel is the apparatus most used for the purpose by milliners, a flat stone being laid on the ground, the sulphur ignited thereon, and the barrel containing the goods to be bleached turned over it. The goods should be previously washed in pure water.

      Wool, Silk, Or Straw.

      —Mix together 4 pounds of oxalic acid, 4 pounds of table salt, water 50 gallons. The goods are laid in this mixture for 1 hour; they are then generally well bleached, and only require to be thoroughly rinsed and worked. For bleaching straw it is best to soak the goods in caustic soda, and afterwards to make use of chloride of lime or Javelle water. The excess of {121} chlorine is afterwards removed by hyposulphite of soda.

      Feathers.

      —Place the feathers from 3 to 4 hours in a tepid dilute solution of bichromate of potassa, to which, cautiously, some nitric acid has been added (a small quantity only). To remove a greenish hue induced by this solution, place them in a dilute solution of sulphuric acid, in water, whereby the feathers become perfectly white and bleached.

      Bleaching Solution.

      —Aluminum hypochloride, or Wilson’s bleaching liquid, is produced by adding to a clear solution of lime chloride a solution of aluminum sulphate (alumina, alum) as long as a precipitate keeps forming. By mutual decomposition aluminum chloride results, which remains in solution, and lime sulphate (gypsum), which separates out in the form of an insoluble salt.

BLIGHT REMEDIES.

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I.—	Soft soap	40 parts
Amyl alcohol	50 parts
Methylated spirit	20 parts
Water	1,000 parts
II.—	Soft soap	30 parts
Sulphureted potash	2 parts
Amyl alcohol	32 parts
Water	1,000 parts
III.—	Soft soap	15 parts
Sulphureted potash	29 parts
Water	1,000 parts

      BLEACHING SOLUTIONS FOR THE LAUNDRY: See Laundry Preparations.

      BLEACHING SOLUTION FOR PHOTOGRAPHS: See Photography.

      BLEEDING, LOCAL: See Styptics.

      BLISTER CURE: See Turpentine.

      BLISTERS, FOR HORSES: See Veterinary Formulas.

      BLOCK, HOLLOW CONCRETE BUILDING: See Stone, Artificial.

      BLOCK FOR SOLDERING: See Soldering.

      BLOTTING PAPER: See Paper.

BLUE FROM GREEN AT NIGHT, TO DISTINGUISH:

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      To distinguish blue from green at night, use either the light of a magnesium wire for this purpose or take a number of Swedish (parlor) matches, light them, and as soon as they flash up, observe the 2 colors, when the difference can be easily told.

      BLUE (BALL): See Dyes.

      BLUING: See Laundry Preparations.

      BLUING OF STEEL: See Steel.

BLUE PRINTS, TO MAKE CHANGES AND CORRECTIONS ON:

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      Use a solution of sodium carbonate and water, with a little red ink mixed in. This gives a very pleasing pink color to the changes which, at the same time, is very noticeable. The amount of sodium carbonate used depends upon the surface of the blue-print paper, as some coarse-grained papers will look better if less soda is used and vice versa. However, the amount of powdered soda held on a small coin dissolved in a bottle of water gives good results.

      BLUE-PRINT PAPER MAKING: See Photography.

      BLUE СКАЧАТЬ