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The Royal Society: Science in the Making

Unpublished paper, 'On the nature and properties of straight lined angles' by J [John] Walsh

Reference number: AP/11/25

Date: 20 January 1824

Description

Walsh discusses the work of Euclid on propositions relating to the sums of angles in triangles. He then seeks to show that the sum of the three angles of every plane triangle is equal to two right angles, independently of parallel lines. An earlier version of this paper is found at AP/11/23. The covering letter for this paper is found at AP/11/24.

Subject: Mathematics

Written by Walsh in Cork [Ireland] and addressed to T [Thomas] Young.

Reference number
AP/11/25
Earliest possible date
20 January 1824
Physical description
Ink on paper
Page extent
3 pages
Format
Manuscript

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Citation

Unpublished paper, 'On the nature and properties of straight lined angles' by J [John] Walsh, 20 January 1824, AP/11/25, The Royal Society Archives, London, https://makingscience.royalsociety.org/items/ap_11_25/unpublished-paper-on-the-nature-and-properties-of-straight-lined-angles-by-j-john-walsh, accessed on 19 January 2025

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https://makingscience.royalsociety.org/items/ap_11_25/unpublished-paper-on-the-nature-and-properties-of-straight-lined-angles-by-j-john-walsh

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    The 'Archived Papers' collection is comprised of original manuscript scientific papers and letters submitted to the Royal Society which remained unpublished or were abstracted in the journal 'Proceedings of the Royal Society' published from 1830 onwards.

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