Book/Printed Material M. Blundeuile his exercises : containing eight treatises, the titles whereof are set down in the next printed page : which treatises are very necessarie to be read and learned of all young gentlemen, that haue not beene exercised in such disciplines, and yet are desirous to haue knowledge as well in cosmographie, astronomie, and geographie, as also in the art of nauigation, in which art it is impossible to profite without the helpe of these, or such like instructions : to the furtherance of which art of nauigation, the said M. Blundeuile specially wrote the said treatises