Second edition. Treatise on navigation, updating the work first published by the author's father, Jean Bouguer in 1698. Bouguer (1698-1758) made several contributions to navigation with his studies on the masts of ships, observing the altitudes of stars at sea in order to better determine position, as well as the magnetic declination at sea depending on the ship's position. He is perhaps best remembered for his work on photometry, and invented the heliometer.
13 copper-engraved folding plates, maps & charts, woodcut engraved device on title. (sm. paper strips pasted on title, some min. browning). - New revised and summarised edition (1st 1753) on navigation and piloting by the French mathematician, geophysicist, geodesist and astronomer M. Pierre Bouguer (1698-1758), also known as "the father of naval architecture". Ill. (the Channel, the Bay of Biscay, the Atlantic and directions of prevailing winds, the Northern and the Southern hemispheres (by Dheulland)). With logarithm tables at end.