κομητογραφια or, A discourse concerning comets : wherein the nature of blazing stars is enquired into; with an historical account of all the comets which have appeared from the beginning of the world unto this present year, MDCLXXXIII, expressing the place in the heavens, where they were seen, their motion, forms, duration; and the remarkable events which have followed in the world so far as they have been by learned men observed ; as also two sermons occasioned by the late blazing stars /