Poor Richard improved: being an almanack and ephemeris ... for the bissextile year, 1748. ... Fitted to the latitude of forty degrees, and a meridian of near five hours from London; but may, without sensible error, serve all the northern colonies. By Rich

Poor Richard improved: being an almanack and ephemeris ... for the bissextile year, 1748. ... Fitted to the latitude of forty degrees, and a meridian of near five hours from London; but may, without sensible error, serve all the northern colonies. By Rich (Online)