It rained the next morning (6th), by which we lost two hours, and we had some unfavorable winds, but, by dint of hard pushing, we made forty-five miles, and slept at Gravelly Point. In this line we passed successively, at distances of seventeen and thirty miles, the rivers Manistic and _Becsie_, which is the Canadian phrase for the anas canadensis. Clouds and murky weather still hovered around us on the next morning, but we left our encampment at an early hour. Thirteen miles brought us to the Omicomico, or Plate River, nine miles beyond which found us in front of a remarkable and very elevated sand June, called the Sleeping Bear--a fanciful term, derived from the Indian, through the French _l'ours qui dormis_. Opposite this feature in the coast geology, lie the two large wooded islands called the Minitos--well-known objects to all mariners who venture into the vast unsheltered basin of the southern body of Lake Michigan. Thirty miles beyond this sandy elevation, brought us to the southern cape of Grand Traverse Bay, where we encamped, having advanced fifty-two miles. This was the first place where we had noticed rocks in situ, since passing the little Konamic River, near Chicago. It proved to be limestone, of the same apparent era of the calcareous rock which we had observed at Sturgeon Bay and the contiguous west shore of Lake Michigan. The line of lake coast included in this remark is three hundred and twenty miles; during all which distance the coast seems, but only seems, to be the sport of the fierce gales and storms, for there is reason to believe that the formations of drift clay, sand, and gravel rest, at various depths, on a stratification of solid, permanent rock. To us, however, it proved a barren field for the collection of both geological and mineralogical specimens. There were gleaned some rolled specimens of organic remains, of no further use than to denote the occurrence of these in some part of a vast basin. There was a specimen of gypsum from Grand River. The few patches of iron sand I had noticed, were hardly worthy of record after the heavy beds of this mineral which we had passed in Lake Superior. The same remark may be made of the few rolled fragments of calcedonies, and other varieties of the quartz family, gleaned up along its shores, for neither of these constitute a reliable locality. [Illustration: Petrified leaf of the _Fagus Ferruginea_.]