A new treatise on the practice of navigation at sea : containing all the details necessary to enable the mariner to become a good practical navigator. (1902)
Thoms, William · New York : Printed for the author and sold by John Bliss & Co · leaf 29
being original matter, whichthe author of this work has derived f^om a personal experience of more than a quarter of a cen-tury, in Navigating Ships to nearly all parts of the world. The work will be closed with themethods of Keeping a Log-Book, exemplified by a journal of a Voyage, with remarks on… … DESCRIPTION AND DIMENSIONS OF THE EARTH. The Polar Diameter is 7899, and the Equatorial Diameter 7926 miles; the latter being the greatest, itMtosed by the revolution of the Earth on its axis, and as the greater portion of the surface is covered withwater, it recedes from the poles towards the…
Navigation · Nautical astronomy
Internet Archive · California Digital Library · Public Domain Mark 1.0. Free to use for anything.
![An illustration from Cosmographia in qvatvor libros distribvta summo ordine, miraqve facilitate, ac breuitate ad magnam Ptolemæi mathematicam constructionem, ad vniuersamque astrologiam institutens. Francisco Barocio ... avtore. Cum præfatione eiusdem autoris, in qua perfecta quidem astrologiæ diuisio, & enarratio autorum illustrium, & voluminum ab eis conscriptorum in singulis astrologiæ partibus habetur: Joannis de Sacrobosco verò 84 errores, et alij permulti suorum expositorum, & sectatorum ostenduntur. rationibusq[uam] redarguuntur. Præcesserunt etiam quædam communia mathematica, necnon arithmetica, & geometrica principia, nonnullæq[uam] propositiones, de quibus in toto opere sæpe fit mentio: ac demum locupletissimus index eorum, quæ ipsa Cosmographia continentur .. (1585)](https://img.insideoutlibrary.com/img/200/ia-cosmographiainqv00baro-395-106.webp)
