He anſwers, That this Motion is Conical; and judgeth, that by the Conick path all the Phænomena of Comets can, without any inconveniency, be readily ſolved; even of that, which (by Hiſtory) in fifty days, paſſed through more then the 12 Signs of the Zodiack; And of that, which in two days run through eight Signs: and of another, which in 48 days poſted through all the Signs, contra ſeriem.
1665 November 6, “An Account of Hevelius his Prodromus Cometicus, together with some Animadversions made upon it by a French Philosopher”, in Henry Oldenburg, editor, Philosophical Transactions, volume I, number 6