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Entered, according to act of Congress, in the year 1854, by
HENRY CAREY BAIRD, In the Clerk's Office of the District Court of the United States, for
the Eastern District of Pennsylvania.
STEREOTYPED BY SLOTE & MOONEY,
THE intention of the Author of the following synopsis is to furnish a cheap, small book containing the best practical information hitherto published and scattered through many eminent authors, nearly all of which he has carefully studied, and having had more than thirty years' experience as a Surveyor, &c., has often had occasion to carry large works in order to have at hand the things necessary in the immediate field practice of surveying, levelling, profiling, calculating excavations, embankments, &c. To render the book as cheap as possible, the tables shall be only those that are really wanted, but by which all things in common practice can be readily done, viz: Latitude and departure, for four pole chains. A table of natural sines, cosines, and tangents, which are most useful for finding the radius of curves, degree of curvature, &c., on railroad and other curves, their application in finding grades, cuttings, fillings, &c., will, it is hoped, prove useful.