The English improver improved or the survey of husbandry surveyed discovering the improueableness of all lands: : some to be vnder a double and treble others vnder a five or six fould. And many vnder a tenn fould, yea some vnder a twenty fould improuement. / - Blith, Walter, (Printed for John Wright, at the Kings-head in the Old-Bayley,, 1652)