Bann navigation. Return showing for each year from 1863 to 1877, both inclusive:--the amounts levied from the several counties chargeable under the acts for the maintenance of the works known under the name of the Bann navigation; the sum paid to lock-keepers and others employed to maintain or take charge of the said works; the amount received for tolls payable for vessels plying on any of the waters rendered navigable by the said works, including the Upper and Lower Bann, Lough Neagh, &c [electronic resource].