A view of the British trade to the Mediterranean : shewing, its importance to us, its precarious situation at present, and that a total loss of it must ensue, unless the views of France and Spain are vigorously opposed : to which is prefix'd, a chart of the Mediterranean Sea, shewing the principal trading ports and harbours belonging to the English, French, Spaniards and Italians : and by which may be seen the present situation of the different fleets of France, Spain, and England /