Remainder | containing many useful geometrical definitions and problems; the doctrine of plainand spherical triangles: plain Mercator, and great-circle-sailing; sundry useful problems in astronomy; the use of instruments; the azimuth-compass; ring-dyal; variation-compass; the fore-staff, quadrant, plough, and nocturnal: the plain scale, Gunter's scale, sinical-quadrant; plain-chart; mercators-chart; both globes; the inclinatory-needle, and vertues of the load-stone; useful tables of the Moon's age, of the tydes, of the Sun's place, declination, and right-ascention; of the stars right-ascention and declination; the latitude and longitude of places; and a table of meridional parts; likewise a new traverse-table, and use thereof in keeping a reckoning at sea: also a table of 10000 logarithms, ... The third edition, enlarged. By John Seller, hydrographer to the King |