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PAGE III. Azimuths of North Star, and their natural tangents
150 IV. Roods and perches in decimal parts of an acre
151 V. Decimals of an acre in one chain length of 100 feet, and of various widths
151 VI. Acres, roods, and perches in square feet
152 VII. Circular arcs to radius of 1
152 VIII. Feet in decimals of a mile .
153 IX. Inches reduced to decimal parts of a foot
153 X. Radii and their logarithms, middle ordinates, and deflection distances
155 XI. Squares, cubes, roots, and reciprocals of numbers, from 1 to 1,042 .
161 XII. Logarithms of numbers from 1 to 10,000
179 XIII. Logarithmic sines, cosines, tangents, and cotangents
197 XIV. Natural sines and cosines
243 Natural tangents and cotangents
256 XVI. Chords, versed sines, external secants, and tangents of a 1°
269 XV. Slopes for topography
315 XVII. Rise per mile of various grades .
SCIENTIFIC BOOKS, ,
D. VAN NOSTRAND,
23 MURRAY STREET, AND 27 WARREN STREET,
A Manual of Theoretical Mechanics. Translated from the fourth augmented and improved German edition, with an Introduction to the Calculus, by ECKLEY B. Coxe, A.M., Mining Engineer. 1,100 pages and 902 woodcut illustrations. 8vo, cloth
FRANCIS (J. B.).
Lowell Hydraulic Experiments. Being a selection from Experi. ments on Hydraulic Motors, on the Flow of Water over Weirs, in Open Canals of Uniform Rectangular Section, and through submerged Orifices and diverging Tubes. Second edition, revised and enlarged, with twenty-three copperplate engravings. 4to, cloth
. 15 00
ROEBLING (J. A.).
Long and Short Span Railway-Bridges. By JOAN A. ROEBLING,
CLARKE (T. C.).
Description of the Iron Railway Bridge over the Mississippi River at Quincy, Ill. Twenty-one lithographed plans. 4to, cloth
A Treatise on Roll-Turning for the Manufacture of Iron. By PETER TUNNER. Translated and adapted by John B. PEARSE, of the Pennsylvania Steel Works. With numerous engravings, woodcuts, and folio atlas of plates
GILLMORE (Gen. Q. A.).
Practical Treatise on the Construction of Roads, Streets, and
THE KANSAS-CITY BRIDGE.
With an account of the Regimen of the Missouri River, and a description of the methods used for founding in that river. By 0. CHANUTE, Chief Engineer, and GEORGE MORRISON, Assistant Engineer. Illustrated with five lithographic views and twelve plates of plans. 4to, cloth
Ice-making Machines. The theory of the action of the various forms of cold-producing, or so-called Ice-Machines (Machines à Froid). 18mo, boards. Illustrated.
Electro-Metallurgy Practically considered. New revised and en. larged edition. (This new edition of this standard work, which has been in the market many years, and is well known by its intrinsic merits, has been very much increased in size, and has been added to in many of its departments, bringing it up to the latest developments of the art.] 12mo, cloth
MCCULLOCH (R. S.),
Elementary Treatise on the Mechanical Theory of Heat, and its
AXON (W. E. A.).
The Mechanics' Friend; a Collection of Receipts and Practical
SHREVE (S. H.).
A Treatise on the Strength of Bridges and Roofs. Comprising the determination of algebraic formulas for strains in horizontal, inclined or rafter, triangular, bowstring, lenticular, and other trusses, from fixed and moving loads. With practical applications and examples, for the use of students and engineers. Eighty. seven woodcut illustrations. Second edition. 8vo, cloth
MERRILL (W. E.).
Iron Truss Bridges for Railroads. The method of calculating strains in trusses, with a careful comparison of the most promi. nent trusses, in reference to economy in combination, &c. Illus. trations. 4to, cloth
STUART (C. B.).
The Civil and Military Engineers of America. With nine finely executed portraits of eminent engineers, and illustrated by en. gravings of some of the most important works constructed in America. 8vo, cloth
CLARK (D. K.).
Fuel; its Combustion and Economy. Embracing portions of the well-known works of C. WYE WILLIAMS, “Combustion of Coal and the Prevention of Smoke," and of T. T. PRIDEAUX's work on “ The Economy of Fuel.” With extensive additions on Recent Practice in the Combustion and Economy of Fuel, Coal, Coke, Wood, Peat, Petroleum, &c. 12mo, cloth
A Manual of Rules, Tables, and Data for Mechanical Engineers.
7 50 Half morocco .
WILLIAMSON (R. S.).
On the Use of the Barometer on Surveys and Reconnoissances.
15 00 Practical Tables in Meteorology and Hypsometry, in connection with the use of the Barometer. 4to, cloth
A Treatise on the Method of Government Surveying, as prescribed
A Treatise on the Richards Steam-Engine Indicator, with an Appendix by F. W. Bacon, M. E. Third edition, revised and en. larged. 18mo, flexible, cloth
BOW (R. H.).
A Treatise on Bracing, with its application to Bridges and other Structures of Wood or Iron. One hundred and fifty-six illustra. tions. Svo, cloth
HAMILTON (W. G.).
Useful Information for Railway Men. Sixth edition, revised and enlarged. 562 pages. Pocket form, morocco, gilt
How to become a Successful Engineer. Being Hints to Youths