PORTSMOUTH, OCT 15.– Several of the store ships and steam vessels employed last winter and spring on the coasts of Ireland and Scotland in the distribution of meal and other descriptions of provisions, brought a considerable quantity back to the government stores, it not having been purchased. An order has been issued for the authorities at the Clarence-yard to take up about one thousand two hundred tons of shipping to convey meal and biscuit to Galway and other parts of Ireland, to be placed in depots, should the boards of guardians of the different district poorhouses require supply. The vessels will be loaded, and sent over in the ensuing week. The stores at the Clarence-yard are filled with Indian meal, &c.