Cleveland. O., Oct. 19.- ín exülanation of the low water in Lake Erie, which is proviug a dangerons impediinent to aavigation, Miijor-. Overman, United States eugineer, states that it need cause qo alarm, as it is tue result of light precipitation in the great. northwest. Lake Superior drains aü that territory, and is the main feeiter of the in land lake system. The level of Lake Superior is lower, and as a natural result the levéis of other lakes fall also. Plenty of snow and a wet 3pring vcill restore the level at once. Lake Erie is novv nine-tenths of a foot belows i tg Qormal levei. All the great lakes are j low, but it has happened before.