Helmert, Mathematical and Physical Theories of Higher Geodesy, Vol. 1

Friedrich Robert Helmert, 1843–1917,
Die Mathematischen und Physikalischen Theorieen der Höheren Geodäsie [Mathematical and Physical Theories of Higher Geodesy], Vol. 1, Preface and the Mathematical Theories (Teubner, Leipzig, 1880).

• German edition of Vol. 1 at Google Books (pdf).
• English translation of Vol. 1 by Aeronautical Chart and Information Center (St. Louis, 1964).

Notes on the English translation:

• This is a scan by Charles Karney of the copy in the USGS library in Reston, VA.
• The table of contents and the cross-references in the text use the page numbers from the original book. This pagination is indicated in the translation by the numbers above and below the horizontal lines in the text.
• The formulas have been cut and pasted (in the old-fashioned way!) from the book. In some cases these are barely legible; go to the German text to disambiguate them (see Google Books link above).
• This translation has 949 pages. However, the scan is perfectly legible when printed 2-up (2 pages per sheet). This should work OK with A4 and US letter sizes.

Helmert, Mathematical and Physical Theories of Higher Geodesy, Vol. 2.
A geodesic bibliography
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