Of Comets or Blazing-Stars, their natural pretences.
I shall not here represent unto you the various causes, or at least the various opi∣nions of Philosophers and Naturalists, con∣cerning the causes of those amazing Prodi∣gies, nor yet take notice of their several Appellations, but only observe three things, which is the principal matter of the whole Subject, viz. first, their appro∣priations to the seven Planets; Secondly, their significations from thence deduced; Thirdly and lastly, what they signifie by their appearance in any of the 12 Signs of the Zodiack: the two first I shall joyn in one Chapter.