A full, contemporary, account of the failed British attack on Martinique in 1759, and subsequent invasion of Grenada written by Richard Gardiner, Captain of the Marines aboard HMS Rippon, employed upon the mission, makes for compelling reading*;  Rippon describes Martinique in 1759 as 'being well wooded and ..exceedingly well watered, Rivulets running everywhere through it.  The most beautiful part of the country is to the S.W.  It produces Sugar, rum, Molasses, Cotton, Ginger, Indigo &c like the other Leeward islands.  His comments on the failure of the 1759 invasion of Martinique are equally note-worthy!

A close examination of this beautiful map reveals an Island which is heavily defended with forts and batteries in every major town and port.  Jefferys includes other important information in his key at the bottom of the chart which shows the location of Buildings, Plantations, Sugar works & mills along with water mills.  Anchorages all around the island are shown as are all of the roads. 

*'An account of the expedition to the West Indies, against Martinico : with the reduction of Guadelupe, and other the Leeward Islands, subject to the French King, 1759'.  Richard Gardiner; John Baskerville; Jay I. Kislak Collection (Library of Congress).  Printed in Birmingham [England] ; [London] : Printed by John Baskerville for G. Steidel, at the Crown and Bible, Maddox-Street, Hanover-Square, London, 1762.