Riders (1721.) British merlin [electronic resource] : Adorn'd with many delightful varieties, and useful verities, fitted to the longitude and latitude of all capacities within the islands of Great-Britain and Ireland. And chronological observations of principal note to this year 1721. Being the first after bissextile, or leap-year, with notes of husbandry and physick, fairs and marts. Also directions and tables for all necessary uses. Made and compos'd for his coun... by Cardanus Riders