In Search of the Castaways; Or, The Children of Captain Grant ON the 26th of July, 1864, a magnificent yacht was steaming along the North Channel at full speed, with a strong breeze blowing from the N. E. The Union Jack was flying at the mizzen-mast, and a blue standard bearing the initials E. G., embroidered in gold, and surmounted by a ducal coronet, floated from the topgallant head of the main-mast.