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326 arrival at Detroit, I sent an express to General Bradstreet, with an account of my proceedings, and to warn him of the dangerous situation he was in, being advanced some miles up the Sandusky river, and surrounded with treacherous Indians. The moment he received my letter, he removed, falling down the river, till he reached Lake Erie: by this means he disappointed their hopes of surprising his army. This army however suffered extremely afterwards, and great numbers were lost in traversing the desert, many of their boats having in the night been dashed to pieces against the shore, while the soldiers were in their tents. The boats were unfortunately too large to be drawn out of the water. The centinels gave the alarm on finding the sudden swell of the lake, but after infinite labour, from the loss of boats, a large body of men were obliged to attempt to reach Fort Niagara by land, many of whom perished. It is worthy of remark, that, during this violent swell of the waters, soldiers stood on the shore with lighted candles, not a breath of wind being perceived. This phænomenon often happens. Another curious fact respecting the waters of these lakes is, that they rise for seven years and fall for seven years; or in other words, there is a seven years tide. I have read somewhere, that the Caspian sea overflows its banks once in fifteen years. This, however, is denied elsewhere. But, if the former opinion be really the case, as the American lakes and the Caspian sea are in parts of the earth almost opposite to each other, it might be worth while to enquire, whether, when they are at the lowest in one place, they are at the highest in that which is opposite, or both rise and fall at the same time?