Mercurius caelicus sive almanack et prognosticon vel speculum anni a nativitate. J.C. 1644. et ab astrorum creatione kepleriana; 5637. : Being bissextile or leap year. Wherein is contained a triple kalender, viz. the Iulian or English, the Gregorian or forrainge, and the true accompt, with all the lunations, planetary configurations, caelesticall observations, & astrologicall predictions therein. /