The nauigator : Shewing and explaining all the chiefe principles and parts both theoricke and practicke, that are contayned in the famous art of nauigation. With a new and admirable way of sayling by the arch of one of the greatest circles. Also contayning excellent tables most exactly calculated, shevving the true proportion of all paralels in respect of the meridian. With the proper phraises vsed in working of a ship according to all weathers. By Captain Charles Saltonstall.