An abstract of the grieuances of the poore clerkes of his Maiesties custome-house London [electronic resource] : by reason of letters pattents lately obtained for the erecting of a new office called the office of clerke of the bils in all his Maiesties custome-houses of England, contained likewise in briefe in a petition by them exhibited vnto this honorable assembly: as also relating the grieuances and inconueniences that do arise thereby to many merchants and tradesmen of the Citie of London: as by certificates vnder the hands of neare three hundred of them (annexed to the said petition) may appeare: viz.