The mathematical jewel : shewing the making, and most excellent use of a singuler instrument so called: in that it performeth with wonderfull dexteritie, whatsoever is to be done, either by quadrant, ship, circle, cylinder, ring, dial, horoscope, astrolabe, sphere, globe, or any such like heretofore devised: ... The use of which jewel, is so aboundant and ample, that it leadeth any man practising thereon, the direct pathway ... through the whole artes of astronomy, cosmography, ... and briefely of whatsoever concerneth the globe or sphere: ... The most part newly founde out by the author, compiled and published ... by John Blagrave of Reading gentleman and well willer to the mathematickes, who hath cut all the prints or pictures of the whole worke with his owne hands. 1585

Author / Creator

Blagrave, John, -1611

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