The great advantages of navigation and commerce to any nation or people : Represented in a sermon preach'd at Deptford, before the Right Honourable the Corporation of the Trinity-House, on Trinity-Monday, 1710. Publish'd at the request of that honourable body. By R. Welton, D.D. rector of White-Chappel. - Welton, R. (Printed for S. [M]anship, at the Ship against the Royal Exchange in Cornhill,, 1710)