Catalogue of the Scientific Publications

of D. Van Nostrand Company, 23 Murray Street and 27 Warren Street, New York.

ADAMS, J. W. Sewers and Drains for Populous Districts. Embracing Rules and Formulas for the dimensions and construction of works of Sanitary Engineers. Second edition. 8vo, cloth

$2.50 ALEXANDER, J. H. Universal Dictionary of Weights and Measures, Ancient and Modern, reduced to the Standards of the United States of America. New edition, enlarged. 8vo, cloth $3.50 ANDERSON, WILLIAM. On the Conversion of Heat into Work. A Practical Handbook on Heat-Engines. Illustrated. 12mo, cloth $2.00 ATKINSON, PHILIP. The Elements of Electric Lighting, including Electric Generation, Measurement, Storage, and Distribution. 12mo, cloth $1.50 AUCHINCLOSS, W. S. Link and Valve Motions Simplified. Illustrated with 37 woodcuts and 21 lithographic plates, together with a Travel Scale, and numerous useful tables. Tenth edition. 8vo, cloth

$3.00

AXON, W. E. A. The Mechanic's Friend. A Collection of Receipts and Practical Suggestions relating to Aquaria, Bronzing, Cements, Drawing, Dyes, Electricity, Gilding, Glass-working, Glues, Horology, Lacquers, Locomotives, Magnetism, Metal-working, Modelling, Photography, Pyrotechny, Railways, Solders, Steam-Engine, Telegraphy, Taxidermy, Varnishes, Waterproofing, and Miscellaneous Tools, Instruments, Machines, and Processes connected with the Chemical and Mechanic Arts. With numerous diagrams and woodcuts. Fancy cloth. . . $1.50

BACON, F. W. A Treatise on the Richards SteamEngine Indicator, with directions for its use. By Charles T. Porter. Revised, with notes and large additions as developed by American practice; with an appendix containing useful formulæ and rules for engineers. Illustrated. Fourth edition.

12mo, cloth.

$1.00