A perfect and easie treatise of the vse of the cœlestial globe : written as well for an introduction of such as bee yet vnskilfull in the studie of astronomie: as the practise of our countriemen, which bee exercised in the art of nauigation. Compiled by Charles Turnebull: And set out with as much plainnes as the author could: to the end it might of euere man be vnderstoode.