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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/AP/16/23" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <dc:title>Unpublished paper, 'Programma geometricum continens clavem quadraturae lunularum inaequalium (3:4) (1:4) et segmenti 60 gradum' [A geometric solution to the quadrature of the lunes (3:4) (1:4) and a 60 degree segment] by Joanne Lobatschevsky</dc:title>
  <dc:description>Lobatschevsky [Lobatchewsky] uses quadrature to identify the area of lunes. Contains one page of figures showing the method used.

Subject: Mathematics / Geometry

Written by Lobatschevsky in Petropoli [St Petersburg, Russia]. The paper is dated '21 Februar/5 Mart 1833' to account for both the Julian and Gregorian calendars.</dc:description>
  <dc:date>5 March 1833</dc:date>
</rdf:Description>