The designe for the perfect draining of the great level of the fens, called Bedford level, lying in Norfolk, Suffolk, Cambridge, Huntingtonshire, Northamptonshire, Lincolnshire and the isle of Ely : as it was delivered to the honourable corporation for the draining of the said great level the 4th of June, 1664 : as also several objections answered since the delivery of the said designe now in agitation : and as for the new works intended in this designe appears in the annexed map : and the charge of the whole calculated /