OF SURVEYING, DESCRIPTION OF THE INSTRUMENTS AND THE NECESSARY TABLES, INCLUDING TABLE OF NATURAL SINES. BY CHARLES DAVIES, MENTAL AND PRACTICAL ARITHMETIC, FIRST LESSONS IN ALGEBRA, PERSPECTIVE, ANALYTICAL GEOMETRY, AND DIFFE- FOURTH EDITION. PUBLISHED BY NES & Co, HARTFORD.-WILEY & PUTNAM; COLLINS, KEESE & Co, & Co, PHILADELPHIA. CUSHING & SONS, BALTIMORE, HARVARD 046×172 ENTERED, according to Act of Congress, in the year 1835, By CHARLES DAVIES, In the Clerk's Office of the Southern District of New-York. STEREOTYPED BY HENRY W. REES, PREFACE. ents of Surveying, published by the author in igned especially as a text-book for the Military I in its preparation little regard was had to the ts of other Institutions. the aim of the author to make it so elementary its introduction into academies and schools, and erefore, anticipate for it an extensive circulation. n received, however, with more favor than was and this circumstance has induced the author to entire work. In doing so, he has endeavored to - plain and practical. en the intention to begin with the very elements ct, and to combine those elements in the simplest as to render the higher branches of plane-surveytively easy. struments needed for plotting have been carefully and the uses of those required for the measurement re fully explained. rentional signs adopted by the Topographical Beauwhich are now used by the United States Engineers charts and maps, are given in plates 5 and 6. these signs be generally adopted in the country, it e entire uniformity to all maps and delineations of nd would establish a kind of language by which culiarities of soil and surface could be accurately d. ount is also given of the manner of surveying the ads; and although the method is simple, it has, ess, been productive of great results, by defining, hematical precision, the boundaries of lands in the |