Chemical Theory of the Tanning Process — The Skin — Hides and Skins — Tannin or Tannic Acid — Gallic Acid — Gallic Fermentation — Tanning Materials — Estimation of Tannin — Preliminary Operations — Depilation or Unhairing Skins and Hides — Deliming or Bating — Tanning Butts for Sole Leather — Tanning Processes — Tanning by Pressure — Quick Tanning — Harness Leather Tanning — American Tanning — Hemlock Tanning — Tanning by Electricity — Chemical Tanning — Miscellaneous Processes — Cost of American Tanning — Manufacture of Light Leathers — Dyeing Leather — Manufacture of White Leather — Chrome Leather Manufacture — Box Calf Manufacture — Chamois or Oil Leather Manufacture — Currying — Machinery Employed in Leather Manufacture — Embossing Leather — Fellmongering — Parchment, Vellum, and Shagreen — Gut Dressing — Glue Boiling — Utilisation of Tanner's Waste.

"A sound, comprehensive treatise on tanning and its accessories." —Chemical Review.

LEATHER MANUFACTURE. PRACTICAL TANNING: A Handbook of Modern Processes, Receipts and Suggestions for the Treatment of Hides, Skins, and Pelts of every description, including various Patents relating to Tanning, with specifications. By Louis A. Flemming, American Tanner. Second Edition, in great part re-written, thoroughly revised, and much enlarged. Illustrated by six full-page Plates. Medium 8vo, cloth, 630 pages [Just published.] Net 28/0

MAGNETOS FOR AUTOMOBILISTS, HOW MADE AND HOW USED. A Handbook of Practical Instruction in the Manufacture and Adaptation of the Magneto to the needs of the Motorist. By S. R. Bottone, late of the Collegio del Carmine, Turin, Author of "The Dynamo," "Ignition Devices," &c. Second Edition, enlarged. With 52 Illustrations. Crown 8vo, cloth Net 2/0

MARBLE AND MARBLE WORKING. A Handbook for Architects, Sculptors, Marble Quarry Owners and Workers, and all engaged in the Building and Decorative Industries. Containing numerous Illustrations and thirteen Coloured Plates. By W. G. Renwick, Author of "The Marble Industry," "The Working of Marble for Decorative Purposes," etc. 240 pages. Medium 8vo, cloth 15/0

The Chemistry of Marble — Its Geological Formation — A short Classification of Marbles — Antiquity of the Marble Industry — Ancient Quarries and Methods of Working — Modern Quarries and Quarrying Methods — Machinery used in Quarrying — European and American Systems compared — Marble as Building Material — Uses of Marble other than for Building Purposes-Sources of Production: Italian, French, Belgian, and Greek Marbles, etc. — Marbles of the United Kingdom and British Colonies — Continental Marble Working — Marble Working Machinery — Marble Working in the United States — American Machinery Described and Compared — Marble Working: A British industry — Marble Substitutes and Imitations — Practical Points for the Consideration of Architects — Hints on the Selection of Marble — List of Marbles in Ordinary Use, with Descriptive Notes and Instances of their Application.

MENSURATION AND GAUGING. A POCKET-BOOK containing Tables, Rules, and Memoranda for Revenue Officers, Brewers, Spirit Merchants, &c. By J. B. Mant. Second Edition. 18mo, leather. 4/0

"Should be in the hands of every practical brewer." —Brewers' Journal.

METRIC TABLES, A SERIES OF. In which the British Standard Measures and Weights are compared with those of the Metric System at present in Use on the Continent. By C. H. Dowling, C.E. 8vo, cloth 10/6