An account of the discoveries concerning comets, with the way to find their orbits, and some improvements in constructing and calculating their places. For which reason are here added new tables, fitted to those purposes; particularly with regard to that comet which is soon expected to return / [Thomas Barker].

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An account of the discoveries concerning comets, with the way to find their orbits, and some improvements in constructing and calculating their places. For which reason are here added new tables, fitted to those purposes; particularly with regard to that comet which is soon expected to return / [Thomas Barker]. Public Domain Mark. Source: Wellcome Collection.