...h it by the facilities of water transportation. Jacksonport is on White river and Pocahontas about 50 miles north of it on the Big Black fork of white river. It is to be presumed that the gallant General Van -Dorn withdrew his forces to the Arkansas river after the battle of Elkhorn, dropped down the river and ascended the White in steamers. What force is still with Price and Pike, is not known; but dou...