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25 cents 4.)—When the point 50 cents accuracy adjustment alidade axis brass Bridges C.E. With Illustrations centre chain circle clamp Cloth Coast Survey Construction contours correct cross-hairs curves depression determined direction distance Edition elevation Engineers engravings feet fiducial edge field forward line forward signal Geology of Pennsylvania ground hachures Hand-Book heights hills horizontal Hypsometry instrument intersection line of sight lines drawn lithographic plates marked means measured meridian Metals method metres middle point minutes of arc Morocco necessary objects observed Paper covers parallel pencils perpendicular placed plane plane-table plotted points point occupied point sought falls Practical Treatise Prof projection Qualitative Chemical Analysis resection right angles rule scale sheet shore line side sketching Slide Valve slope station Steam Steel surveyor taken tangent screw telemeter telescope tion topographer triangle of error triangulation points true point U. S. Navy vertical arc wood-cuts Yale College Zerah Colburn
Página 95 - CRAIG, BF Weights and Measures. An account of the Decimal System, with Tables of Conversion for Commercial and Scientific Uses. Square 32mo, limp cloth 50 CROCKER, FB Electric Lighting.
Página 91 - Levelling. A TREATISE on the PRINCIPLES and PRACTICE of LEVELLING ; showing its Application to Purposes of Railway and Civil Engineering, in the Construction of Roads ; with Mr. TELFORD'S Rules for the same. By FREDERICK W. SIMMS, FGS, M. Inst. CE Sixth Edition, very carefully revised, with the addition of Mr.
Página 93 - AXON, WEA 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.
Página 99 - Assistant. Embracing Lathe Work, Branch Work, Core Work, Sweep Work, and Practical Gear Constructions, the Preparation and Use of Tools, together with a large collection of useful and valuable Tables.
Página 93 - Schools, in which the Definitions and Rules of Geometry are familiarly explained ; the Practical Problems are arranged, from the most simple to the more complex, and in their description technicalities are avoided as much as possible.
Página 92 - WA Key to the Solar Compass, and Surveyor's Companion. Comprising all the rules necessary for use in the field ; also description of the Linear Surveys and Public Land System of the United States, Notes on the Barometer, Suggestions for an Outfit for a Survey of Four Months, etc.
Página 87 - Manual of Qualitative and Quantitative Analysis with the Blow-Pipe. From the last German Edition, revised and enlarged. By Prof. TH. RICHTER, of the Royal Saxon Mining Academy. Translated by Prof. HB CORNWALL, Assistant in the Columbia School of Mines, New York.
Página 83 - The THEORY of STRAINS in GIRDERS and similar Structures, with Observations on the application of Theory to Practice, and Tables of the Strength and other Properties of Materials.
Página 96 - Light-Houses. EUROPEAN LIGHT-HOUSE SYSTEMS ; being a Report of a Tour of Inspection made in 1873. By Major GEORGE H. ELLIOT, Corps of Engineers, USA Illustrated by 51 Engravings and 31 Woodcuts in the Text. 8vo, 2ls.
Página 84 - Modern Marine Engineering, applied to Paddle and Screw Propulsion. Consisting of 36 colored plates, 259 practical woodcut illustrations, and 403 pages of descriptive matter. The whole being an exposition of the present practice of James Watt & Co. , J. & G. Rennie, R.