The safegard of sailers, or great rutter : con[tai]ning the courses, distances, depthes, sounding[s,] floudes and ebbes, vvith the markes for the entrings of sundrie harboroughs, both of England, Fraunce, Spaine, Ireland, Flaunders, and the soundes of Denmarke, with other necessarie rules of common nauigation: Translated out of Dutch into English, by Robert Norman, hydrographer.