The requisite nautical assistant

containing the latest discoveries and improvements in the art and practice of navigation ... To which is annexed a dissertation on eyesight, particularly as applicable to navigation : together with charts of the principal stars, and descriptions, by which any star may readily be found : also, an entirely original method of working great circle sailing by inspection, without the use of logarithms : and a new and short method of finding the time from observations of the sun near setting or rising : with a supplement ...

Edición de la obra The requisite nautical assistant