An almanack, agreeable to the new-stile, and on an entire new-plan. For the year of Christian account 1768. ... Calculated for the meridian of Charlestown, in South-Carolina, in lat. 32 deg. and 45 min. north, and fitted to that meridian difference of time from London, which is 5 hours and 15 minutes west, but may serve all the adjacent parts, with little error, from Maryland to East-Florida. / By William Ball, philomath.