File:RamsdenRS theodolite of 1787.jpg

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Summary

Description
English: The first of the three foot theodelites manufactured by Jesse Ramsden. Image published in "An Account of the Trigonometrical Operation, Whereby the Distance between the Meridians of the Royal Observatories of Greenwich and Paris Has Been Determined. By Major-General William Roy" (January 1, 1790). Now available at archive.org. The illustration is from Plate III. (The plates are at the end of the bound volume but Plate III is at page 202 of the PDF file.) The full text description is on true pages 135-160 corresponding to pages 28-53 of the PDF file
Date
Source Philosophical Transactions of the Royal Society of London, volume 80, 1790
Author William Roy
Permission
(Reusing this file)
See alsoFile:RamsdenRS theodolite of 1787 microscope detail.png

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This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1925.

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current21:34, 31 January 2015Thumbnail for version as of 21:34, 31 January 2015572 × 962 (93 KB)Peter MercatorUser created page with UploadWizard
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