Navigation made easy and familiar to the most common capacity: or the young sailor's sure guide, and scholar's best instructor in the art of navigation. Comprehending every modern Improvement of real Utility, and divested of all extraneous Matter, not immediately relating to the Subject, by Way of Dialogue. In four books. Book I. Contains the Nature and Use of Logarithms, Geometry, and Plane Trigonometry, both right angled and oblique. II. Explains Terms in Sailing, with the Cases in Plane Sailing, also Traverse Sailing, Parallel and Middle Latitude, Mereator's, Oblique, and Current Sailing, and turning to Windward. III. Of he Requisites for Dead Reckoning, discovering Currents, High Water, Tides, and Trade Winds, &c. and the Variation of the Compass, Meridian, and double Altitudes of the Sun for correcting Latitude both by natural Sines and Logarithms, the Moon's Distance from the Sun or known fixed Stars for determining the Longitude, with a Method of finding the Longitude by a good common Watch, the Use of Instruments, and many general Observations of great Use to the practical Seaman. IV. Contains a Journal of a Voyage from London to Madeira, to which are annexed Observations on the several Days Works during the Voyage. To all which An Introduction is prefixed, containing a concise System of Arithmetic, adapted purposely for Seamen; and to the whole Every Table is added which the latest Improvements have made necessary; all which have been examined with a critical Attention, and several Errors corrected and Additions made to those Tables taken from the first Authority; Forming together the most Concise, correct, and methodical Work of the Kind extant. By the Rev. John Malham, Teacher of Navigation and the Classics, in Plymouth-Dock; and Author of the New Universal Companion, the School-Master's Complete Companion, &c