Skip to content

Please be aware that some material may contain words, descriptions or illustrations which will not reflect current scientific understanding and may be considered in today's context inaccurate, unethical, offensive or distressing.

The Royal Society: Science in the Making

Letter, 'Of spheric triangles [spherical trigonometry] from Israel Lyons to John Pringle

Reference number: L&P/6/129

Date: 20 March 1775

Description

Subject: Mathematics

Published in Philosophical Transactions, as 'Calculations in spherical trigonometry abridged. By Israel Lyons. In a letter to Sir John Pringle, Bart. P.R.S'

Read 6 July 1775

Reference number
L&P/6/129
Earliest possible date
20 March 1775
Physical description
Ink on paper
Page extent
14 pages
Format
Manuscript

Use this record

IIIF manifest

View​ IIIF ​ manifest Opens in new tab

Open in Mirador viewer Opens in new tab

Export this record

Download PDF Opens in new tab

Citation

Letter, 'Of spheric triangles [spherical trigonometry] from Israel Lyons to John Pringle, 20 March 1775, L&P/6/129, The Royal Society Archives, London, https://makingscience.royalsociety.org/items/l-and-p_6_129/letter-of-spheric-triangles-spherical-trigonometry-from-israel-lyons-to-john-pringle, accessed on 17 July 2025

Link to this record

https://makingscience.royalsociety.org/items/l-and-p_6_129/letter-of-spheric-triangles-spherical-trigonometry-from-israel-lyons-to-john-pringle

Embed this record

<iframe src="https://makingscience.royalsociety.org/embed/items/l-and-p_6_129/letter-of-spheric-triangles-spherical-trigonometry-from-israel-lyons-to-john-pringle" title="Letter, 'Of spheric triangles [spherical trigonometry] from Israel Lyons to John Pringle" allow="fullscreen" frameborder="0" width="100%" height="500px"></iframe>

Related Publications

Hierarchy

This item is part of:

Related Fellows

Explore the collection

  • Letters and Papers

    'Letters and Papers' contains the scientific correspondence sent to the Royal Society through the 18th century, many of which were published in its journal.

    Dates: 1741 - 1806

    View collection