M.D.C.XLI. Almanack et prognosticon sive speculum anni à nat. I.C. 1641 : Et ab astrorum creatione Keplerianâ 5634 being the first after bissextile, or leap-year. Wherein is contained a three-fold kalendar ecclesiasticall, viz. the Iulian: the Gregorian, and the true accompt, configuration, eclipses, and other cœlestial observations therein. Calculated exactly for the meridian of the honourable Citie of London composed by John Booker.