A dissertation on comets, extracted from the writings of the most eminent modern astronomers and philosophers. In a letter to a reverend professor. To which is prefixed the theory of a comet (1700)
London : Printed for C. Corbett ... · leaf 66
Comets -- Early works to 1800 · Comets
Internet Archive · Wellcome Library · Public domain (published before 1931). Free to use for anything.