Mathematical recreations, or, A collection of many problems extracted out of the ancient and modern philosophers as secrets and experiments : in arithmetick, geometry, cosmography, horologiography, astronomy, navigation, musick, opticks, architecture, statick, mechanicks, chymistry, water-works, fire-works & c. : not vulgarly manifest till now / written first in Greek and Latin ; lately compil'd in French by Henry Van Etten and now in English ; with the examinations and augmentations of divers modern mathematicians ; whereunto is added The description and use of the double horizontal dyal and the general horological ring / invented and written by William Oughtred.