On the violence of winds and waves in many northern harbours

IT has been shown above in the first books, about the nature of the cyclone and of the wind Circius,2 what a violent and stormy gale rises when north winds blow. A very few instances will demonstrate what sort of gains or disadvantages this wind normally produces when it is a question of salvaging ships in harbours. On the western shores of his imperial majesty's domains of Zeeland, Holland, and East and West Friesland there are very high mountains and hills of sand, driven together long since entirely out of the bowels of the deep North Sea by the force of winds blowing constantly from that northerly quarter for a whole year or more at a stretch.³