p. 625

[Calculations in upper right hand corner]

upon horizontal layers of limestone rock. The constant action of the waves is gradually undermining and wearing away this bank, so that Wisconsin is usually loosing a portion of her Territory. It is entirely destitute of islands except at its northern extremity; its surface is five hundred and seventy eight feet above Tide water. It discharges its waters into Lake Huron through the straits of Mackinow, ([Michilinacinac]?) of ancient writers); but there are many striking proofs of its having formerly sent forth its waters towards the south through the valley of the Illinois river.

109 feet from Light home to break of bank at Milwaukee January 5th 1844-About 10 feet gone in 4 years-

Milwaukee Harbor-Jany 1844] Sand has accumulated on the north side of the pier 375 ft since it was out in Say July last as represented in this figure].

[Sketch]