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An essay towards the history of the principal comets that have appeared since the year 1742 ; including a particular detail of the return of the famous comet of 1682 in 1759, according to the calculation and prediction of Dr. Halley / compiled from the observations of the most eminent astronomers of this century ; with remarks and reflections upon the present comet ; to which is prefixed by way of introduction a letter upon comets, addressed to a lady by the late M. de Maupertuis. Written in the year 1742. Public Domain Mark. Source: Wellcome Collection.