Mr. Blundevil his exercises, contayning eight treatises ... which treatises are very necessary to be read and learned of all young gentlemen, that have not been excercised in such disciplines, and yet are desirous to have knowledge as well in cosmographie, astronomie, and geographie, as also in the art of navigation, in which art it is impossible to profit without the help of these or such like instructions

To the furtherance of which art of navigaiton, the said Mr. Blundevil specially wrote the said treatises ...

7th ed. cor. and somewhat enl. by Ro. Hartwell philomathematicus.