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280 Lake Michigan

that this current cannot be caused by the passage of the water of the river through the lake, especially in Lake Michigan which may be considered as a branch, and not a part of the great river that connects the lakes: [What then] and besides, the current is as often in [one] a direction up the lake as down it. What then can be the cause of this constant motion of the waters? Is it a tidal wave?

[Who] It is believed that this phenomenon may be fully accounted for by observing the effects of the storm winds on the lake. A heavt north east wind, which is by far the most common, will cause an accumulation of waters at the south end of the lake. This excess of water being acted upon by gravitation seeks its level and returns with great force towards the north, hence causing an undulation or tide which perhaps will continue to ebb and flow until another storm will act upon the lake and produce the same results; [and] keeping the water in constant motion, and causing it to rise and fall at particular places as much as four feet.-