File:Roy 1790 Plate 04 Section of the Instrument.jpg
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Section of the Instrument
Summary
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| Description |
English: Plate 4 from: Roy, William (1790). "An account of the trigonometrical operation, whereby the distance between the meridians of the Royal Observatories of Greenwich and Paris has been determined". Philosophical Transactions of the Royal Society of London 80: 111-614. Title: "Section of the instrument through the microscopes, and in the direction of the axes of the telescope" |
| Date | |
| Source | https://archive.org/details/paper-doi-10_1098_rstl_1790_0015 |
| Author | Roy, William, 1726-1790 |
Licensing
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This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 70 years or fewer. 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, 1929. |
| This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. | |
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