Johnson, The Coal Trade of British America;

With Researches on the Characters and Practical Values of American and Foreign Coals. By Walter R. Johnson,

Civil and Mining Engineer and Chemist. 8vo........$2.00

This volume contains the results of the experiments made for the Navy Department, upon which their Coal contracts are now based.

Johnston, Instructions for the Analysis of Soils, Limestones and Manures,

By J. F. W. Johnston. 12mo................................. 38

Larkin. The Practical Brass and Iron Founder's Guide;

A Concise Treatise on the Art of Brass Founding, Moulding, etc. By James Larkin. 12mo., cloth............$1.25

Leslie's (Miss) Complete Cookery;

Directions for Gookery in its Various Branches. By Miss Leslie. 58th thousand. Thoroughly revised; with the addition of New Receipts. In one volume, 12mo., half bound, or in sheep..............................................$1.25

Leslie's (Miss) Ladies' House Book;

A Manual of Domestic Economy. 20th revised edition. 12mo., sheep.....................................................$1.25

Leslie's (Miss) Two Hundred Receipts in French Cookery.

Cloth, 12mo......................................................... 25

Lieber, Assayer's Guide;

Or, Practical Directions to Assayers, Miners and Smelters, for the Tests and Assays, by Heat and by Wet Processes, of the Ores of all the principal Metals, and of Gold and Silver Coins and Alloys. By Oscar M. Lieber, late Geologist to the State of Mississippi. 12mo. With illustrations ............................................................... §1.25

"Among the indispensable works for this purpose, is this little guide." - Artizan.

Lowig, Principles of Organic and Physiological Chemistry,

By Dr. Carl Lowig, Doctor of Medicine and Philosophy; Ordinary Professor of Chemistry in the University of Zurich; Author of "Chemie des Organischen Verbindun gen." Translated by Daniel Breed, M. D., of the U. S. Patent Office; late of the Laboratory of Liebig and Lowig. 8vo., sheep........................................................$3.50

Marble Worker's Manual;

Containing Practical Information respecting Marbles in general, their Cutting, Working and Polishing, Veneering, etc., etc. 12mo., cloth.................................$1.25

Miles, A Plain Treatise on Horse-shoeing,

With Illustrations. By William Miles, Author of " The Horse's Foot."...................................................$1.00

Published By Henry Carey Baird.

Main & Brown, The Marine Steam-Engine.

By Thomas J. Main, F.R. Ast. S. Mathematical Professor at the Royal Naval College, Portsmouth, and Thomas Brown, Assoc. Inst. C. E. Chief Engineer R. N. attached to the Royal Naval College. Authors of "Questions Connected with the Marine Steam-Engine," and the "Indicator and Dynamometer." With Numerous Illustrations.

In one Volume, 8vo.............................................$5.00

CONTENTS. - Introductory Chapter, The Boiler, The Engine, Getting up Steam, Duties to Machinery when under Steam, Duties to Engine, etc., on arriving in harbor, Miscellaneous, Appendix.

Main & Brown, Questions on Subjects Connected with the Marine-Steam Engine,

And Examination Papers; with Hints for their Solution. By Thomas J. Main, Professor of Mathematics Royal Naval College, and Thomas Brown, Chief Engineer R. N. 12mo., cloth.................................................................$1.50

Main & Brown, The Indicator and Dynamometer,

With their Practical Applications to the Steam Engine. By Thomas J. Main and Thomas Brown. With Illustrations. 8vo., cloth..............................................$1.50

Morfit. A Treatise on Chemistry

Applied to the Manufacture of Soap and Candles; being a Thorough Exposition, in all their Minutiae, of the principles and Practice of the Trade, based upon the most recent Discoveries in Science and Art. By Campbell Morfit, Professor of Analytical and Applied Chemistry in the University of Maryland. A new and improved edition. Illustrated with 260 Engravings on Wood. Complete in one volume, large 8vo.............................$7.50

CONTENTS. - CHAPTER I. The History of the Art and its Relations to Science - II. Chemical Combination - III. Alkalies and Alkaline Earths - IV. Alkalimentary - V. Acids - VI. Origin and Composition of Fatty Matters - VIT. Saponiflable Fats - Vegetable Fats - Animal Fats - Waxes - VIII. Action of Heat and Mineral Acids of Fatty Matters - IX. Volatile or Essential Oils, and Resins - X. The Proximate Principles of Fats - Their Composition and Properties - Basic Constituents of Fats - XI. Theory of Saponification - XII. Utensils Requisite for a Soap Factory - XIII. Preparatory Manipulations in the Process of Making Soap - Preparation of the Lyes - XIV. Hard

Soaps - XV. Soft Soaps - XVI. Soaps by the Cold Process - XVII. Sili cated Soaps - XVIII. Toilet Soaps - XIX. Patent Soaps - XX. Fraud and Adulterations in the Manufacture of Soap - XXI. Candles - XXII. Illumination - XXIII. Philosophy of Flame - XXIV. Raw Material for Candles - Purification and Bleaching of Suet - XXV. Wicks - XXVI. Dipped Candles - XXVII. Moulded Candles - XXVIII. Stearin Candles - XXIX. Stearic Acid Candles - "Star" or "Adamantine" Candles - Saponification by Lime - Saponification by Lime and Sulphurous Acid - Saponification by Sulphuric Acid - Saponification by the combined action of Heat, Pressure and Steam - XXX. Spermaceti Candles -XXXI. Wax Candles - XXXII. Composite Candles - XXXIII. Paraffin - XXXIV. Patent Candles - XXXV. Hydrometers and Thermometers.

Mortimer, Pyrotechnist's Companion;

Or, a Familiar System of Fire-works. By G. W. Mortimer. Illustrated by numerous Engravings. 12mo$1.25

Napier, Manual of Electro-Metallurgy;

Including the Application of the Art to Manufacturing Processes. By James Napier. From the second London edition, revised and enlarged. Illustrated by Engravings. In one volume, 12mo.................................$1.50