A briefe relation discovering plainely the true causes why the great levell of fenns in the severall counties of Norfolk, Suffolk, Cambridge, Huntington, Northampton, and Lincolne shires, being three hundred and seven thousand acres of low-lands, have been drowned and made unfruitfull for many yeares past : and as briefly how they may be drained, and preserved from inundation in the times to come : humbly presented to the honourable House of Commons assembled in Parliament /