The compleat cannoniere: or, The gunners guide : Wherein are set forth exactly the chiefe grounds and principals of the whole art, in a very briefe and compendious forme, never by any set forth in the like nature before. With divers excellent conclusions, both arithmeticall and geometricall belonging thereunto: as also sundry serviceable fireworkes, both for sea and land service. A study delightfull and very usefull for men of the best quality, and imbrac'd by the greatest princes. Written by Iohn Roberts of Weston neere Bathe, Gentleman, practitioner and professor in the arte thereof.