A Treatise On LAND-SURVEYING: Comprising The Theory Developed From Five Elementary Principles; And The Practice With The Chain Alone, The Compass, The Transit, The Theodolite, The Plane Table, & C. Illustrated By Four Hundred Engravings And A Magnetic Chart Gillespie, W.M. Science

Quarto. Quarter-leather over black textured cloth. Moderate rubbing to extremities, fraying to top and bottom of spine, and some loss of leather along joints. Solidly bound. 424 pages, plus 84 pp. of "Traverse Tables: Or, Latitudes and Departures of Courses, Calculated to Three Decimal Places: for Each Quarter Degree of Bearing. Chapters Part I: General Principles and Fundamental Methods I) Definitions and Methods; 2) Making The Measurements; 3) Drawing the Map; 4) Calculating the Content. 2. NOTE: The "Magnetic Chart" is a fold out chart illustrating "Lines of Equal Magnetic Declination for the Year 1850, first published in 1856.