It will never be said of my children (the girls' any more than the boys), in case of a boat capsizing, " none of the party could swim ;" — the dreary and shameful announcement which we see in the newspaper reports of the NATTONAL LIFE-BOAT INSTITUTION about a dozen times a-year. Whether they be sailors, soldiers, emigrants, or merely cross the sea in travelling, my sons will not be drowned for want of learning to swim.—Once a Week..