Wing 1648 : an almanack and prognostication for the year of 1648 being the bissextile or leap-yeare and from the creation of the world 5597, wherein is contained many usefull pleasant and necessary observations being very delectable and are easie to be understood of all sorts of men ... calculated (according to art) for the meridian and latitude of Belvoir-Castle in Lincolnshire whose longitude is 20 deg, 0 min, latitude 52 deg, 52 min and without sensible errour may serve the 3 kingdoms of England, Scotland and Iceland /