A Treatise on the Principles and Practice of Levelling: Showing Its Application to Purposes of Railway Engineering and the Construction of Roads, &c
Van Nostrand, 1870 - 157 Seiten
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adjustment angle appear application assumed base Bridge calculations centre Cloth column complete computed considered construction contains correct cross curve cutting datum depth described determined diagram difference of level direction distance Drawing earth edge edition embankment employed Engineer engravings equal error example experiments fall feet field foot former forward forward station give given glass greater ground half width height horizontal Illustrated important inches inclination Iron kind length mark materials means measured Mechanics method mile Mining move natural necessary notes object observation obtain operation placed plates position practical present produced quantity radius railway reading reduced reference represent result Revised rise road shown side sight slope staff stake staves Steam stones Students surface Survey Tables taken telescope tion TREATISE Water whole wires
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Seite 26 - ... 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. With illustrations for Drawing Plans, Sections, and Elevations of Railways and Machinery; an Introduction to Isometrical Drawing, and an Essay on Linear Perspective and Shadows.
Seite 17 - Watt's Dictionary of Chemistry. Supplementary Volume. 8vo. Cloth. $9.00. This volume brings the Record of Chemical Discovery down to the end of the year 1869, including also several additions to, and corrections of, former results which have appeared in 1870 and 1871.
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Seite 151 - The angles in the same segment of a circle are equal to one another.