Great Salt Lake has no outlet save evaporation

and its clear water consequently holds at all times a considerable quantity of saline matter in solution; in 1850 the proportion was 22.4 per cent., in 1859 it was only 14.8. Between these dates the annual tribute exceeded the evaporation, and the area of the lake increased from 1,700 to 2,360 square miles; more recently, it has again been slowly receding. Several species of insects and a brine-shrimp bave been found in its waters, but no fishes; large flocks of water-fowls frequent the shores. The first mention of Great Salt Lake was by the Francise an friar Escalante in 1776, but it was first explored and described in 1843 by Fremont. A thorough survey was made in 1840-1850 by Capt. Howard Stansbury, U. S. A. Great Slave Lake, a body of water in the Canadian Northwest Territory (62° N. lat.); greatest length about 300 miles, greatest breadth 50 miles. It discharges by the Mackenzie river into the Arctic Ocean.