[T]he colour of a Comet ſignifies the Nature of the Ruling Planet. This was of a Fiery Red, but mixed with a dusky Silver colour, which made it look but dim in appearance, (unleſs in clear Nights before the Moon was up, for then it look'd more Rutilant:) and therefore it was likewiſe in this reſpect of the Nature of Mars and Mercury, [...]