This volume, entitled "The Great Navigators of the 18th century", forms the second of three volumes under the general title of "Celebrated Travels and Travellers". The first volume of the series, "Exploration of the World", covers a period in the world's history extending from B.C. 505, to the close of the 17th century, and the third volume gives an account of "The Great Explorers and Travellers of the 19th Century". - Summary from the Publishers' Note