An act to explain and amend an act, intituled, An act for the better regulating the work-house of the city of Dublin, and to regulate and provide for the poor thereof, and to prevent mischiefs which may happen by keeping gun powder within the said city; and also, for explaining and amending one other act, intituled, An act for the better enabling the governors of the work-house of the city of Dublin to provide for, and employ the poor therein, and for the more effectual punishment of vagabonds; and also, for the better securing of, and providing for lunaticks and foundling children .