Mathematical and Physical Theories of Higher Geodesy, Part 1, Preface and the Mathematical Theories

This is a translation of Part 1 of F. R. Helmert, Die Mathematischen und Physikalischen Theorieen der Höheren Geodäsie (Teubner, Leipzig, 1880), by the Aeronautical Chart and Information Center (St. Louis, 1964).Scan by Charles Karney of the copy in the USGS library in Reston, VA. The translation is a work of the U.S. Government and so is in the public domain