The sea-mans diall, or, The mariners card: directing unto the safe port of Christian obedience. And shewing the reasons which moved the authour, a sea commander, to returne unto his loyalty, and the service of the Soveraigne. As it was sent in a letter to a private friend, to be published from him unto the seamen; and is by this friend thus intituled: and dedicated unto the consideration, and commended unto the practise of all honest true hearted sea-men of England.