A mirror for mathematiques : A golden gem for geometricians: a sure saftey for saylers, and an auncient antiquary for astronomers and astrologians. Contayning also an order howe to make an astronomicall instrument, called the astrolab, vvith the vse thereof. Also a playne and most easie instruction for erection of a figure for the 12. houses of the heauens. A work most profitable for all such, as are students in astronomie, [and] geometrie, and generally most necessarie for all learners in the mathematicall artes. The contents of which booke yon shall find in the next page. By Robert Tanner Gent. practitioner in astrologie & phisick.