Practical navigation, or, An introduction to the whole art : containing many useful geometrical definitions and problems : the doctrine of plain and spherical triangles, plain mercator, great-circle sailing : sundry useful problems in astronomy " the use of instruments : the Azimuth-compass and ring-dial, the fore-staff, quadrant and nocturnal : the plain scale, Gunter's scale, plain-chart, Mercator's chart, both globes, and virtues of the loadstone : useful tables of the Moon's age, of the tides, of the Sun's place, declination, and right-ascension : the latitude and longitude of places, and a table of miridional parts : likewise a new traverse-table and the use thereof in keeping a reckoning at sea : also, a table of 10,000 logarithms and of the logarithm sines, tangents, and secants / by John Seller.