ALASKA RIVERS, Their Number and Characteristics- The Stickine. sjiiblime Alpine Scenery—An Alaska Canyon. Glacier Mud—Stupendous Glacial Phenomena. [SPECIAL C03J3ESPOKDENCE 03? THE BULLETIN.] Sitka, December 27,1879. Alaska is covered with a network of deep, cool, perennial streams, that flow on, ever fresh and sweet through grassy plains and mossy bogs and rock-bound glacial cafions, telling ever where, all the way down to the sea. how bountiful are the clouds that fill their ample fountains. Some thirty or forty rivers have been discovered in the Territory, the number varying as the smaller ones have been called rivers, or creeks, by the map-makers. But not one of them all, from the mighty Yukon, 2,000 miles long, to the shortest of the m...