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E. & F. N. SPON, 16, CHARING CROSS.

NEW YORK:

35, MURRAY STREET.

1883.

05-25-49BRD

5-349

..W93

V. 2

PREFACE.

ENCOURAGED by the remarkable success of the original Workshop Receipts,' the author has ventured to produce a second series on the same pattern.

In all branches of applied science-whether chemical, electrical, metallurgical, or mechanical—there are numerous subjects which, taken alone, are not sufficiently large or important to deserve a separate volume for their description, but which, at the same time, are of considerable interest to scientific amateurs and to manufacturers on a moderate scale. These subjects, unworthy a place in the great industrial encyclopædias, such as Spons', Ure's, or Muspratt's, are well adapted for arranging in groups in a less pretentious volume like the present. In addition to the lesser industries, there are a number of recipes and hints connected with the larger industries, which, though generally based on rule of thumb rather than on scientific principles, have, nevertheless, great practical value, and often ensure success where other means fail; these are usually overlooked or despised by theoretical writers, though they represent the knowledge gained by actual experience, and are jealously regarded as trade secrets by their possessors. These, arranged conveniently, cannot fail to attract attention.

The writer of the present volume has had the advantage of being made acquainted with the suggestions from various sources which the original work called forth, and he has endeavoured to utilize them to the utmost in improving the arrangement of subjects and other details. The matters discussed here have all more or less intimate connection with

chemical trades, and bear some relation to each other. In a very few instances, recipes which appeared in the original work have been repeated here: when such is the case, they have been necessary, in order to make a subject complete; and opportunity has at the same time been taken to amplify them in a manner which renders them practically new.

In conclusion, the work is provided with a full list of contents, and an index about which no pains have been spared. ROBERT HALDANE.

LONDON, July, 1883.

CONTENTS.

Acidimetry and Alkalimetry: ready means of estimating the acidity and
alkalinity of liquids.

Albumen: occurrence, characters, composition, impurities, qualities, uses,
coagulation, restoration to coagulable state; full details of manufacture of
Blood albumen, Egg albumen, Fish albumen, and Vegetable albumen, with
suggestions as to new sources.

Alcohol: sources; synopsis of manufacture of Caustic alcohol (sodium ethylate),
and alcohol from Fruit, Grain, Molasses, Moss, and Roots; rectification; and
Wood alcohol (pyroxylic spirit).

Alkaloids: general methods of preparation; special methods for Aconitine,
Atropine, Berberine, Brucine, Calumbine, Cascarilline, Colchicine, Morphine,
Narcotine, Nicotine, Piperine, Quinine (including amorphous quinine and
quinetum), Salicine, Strychnine, and Veratrine.

Baking-powders: general remarks on true value and essential conditions, and
many recipes for their preparation.

Bitters: recipes for Amazon, Angostura, Aromatic, Boker's, Brandy, Essence,
French Cognac, Hamburg, Nonpareil, Orange, Peruvian, Spanish, Stomach,
Stoughton, and Wild Cherry bitters.

Bleaching: recipes for bleaching and decolorizing Albumen, Animal fibres,
Coral, Cotton, Esparto, Feathers, Guttapercha, Hair, Ivory, Jute, Linen,
Oils and Fats, Paper Pulp, Paraffin, Rags, Shellac, Silk, Silver dials, Sponge,
Starch, Straw, Wax, Wool.

Boiler Incrustations: numerous analyses of feed waters from rivers,
lakes, wells, town supply, rain, canals, pits, springs, and the sea, with analyses
of the incrustations produced by them, and a critical examination of the
various chemical, chemico-mechanical and physical processes for preventing
boiler corrosion.
Cements and Lutes: general directions for the preparation and application
of cements and lutes; numerous recipes under the following heads:-Acid-
proof, Alabaster, Algerian, Almond paste, Amber, Aquarium, Architectural,
Armenian or Diamond, Badigeon, Bottle, Brimstone, Buckland's, Canada
balsam, Cap, Casein, Chemical, Chinese or Schio-liao, Chinese glue, Chrome,
Coppersmiths', Corks, Crucible, Curd, Cutlers', Dextrine, Egg, Elastic,
Engineers', Fat, Fireproof, French, Glass, Glass to Metals, Glue (including Fish
glue, Lapland glue, Liquid glue, Mouth or Lip glue, Portable glue), Glycerine,
Gum-arabic, Gum tragacanth, Hensler's, Indiarubber, Iron, Isinglass, Ivory,
Japanese, Jewellers', Kerosene lamps, Labels, Laboratory, Lead, Leather,
Mahogany, Marble, Marine glue, Masons', Meerschaum, Metal to glass,
stone, &c., Microscopical, Milk, Naturalists', Opticians', Parabolic, Parian,
Paris, Paste, Peasley, Plasters, Plumbers', Porcelain, Putty, Sealing-wax,
Shellac, Soluble glass, Sorel's, Steam, Stone, Turners', Waterproof, Wollaston's,
Wood, Zeiodelite.
Cleansing: a complete selection of recipes for washing, cleaning, scouring, puri-
fying, and removing stains, arranged under the following heads :- Brass,
Bronze, Casks, Celluloid, Chip bonnets, Coins, Copper vessels, Druggists'
utensils, Engravings, Feathers, Fire-arms, Floors, Fur, Gas chandeliers, Gilt
mountings, Gilt picture frames, Glass (bottles, globes, plates, slides, paint
stains, windows), Gloves, Gold, Iron and Steel, Ivory and Bones, Leather,
Marble, Mirrors, Oilcloth, Paint, Paint - brushes, Paintings, Parchment,

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