The morning of the 18th (Sept.) proved fair, which enabled us to cross the bay, taking the island of Shawangunk in our course, where we stopped an hour, and re-examined its calcedonies and other minerals. We then proceeded across to Oak Point, on its eastern shore, and, coasting down to, and around, the precipitous cliffs of Point aux Barques, encamped in one of its deeply-indented coves, having made, during the day, forty-two miles. The formation of this noted promontory consists of an ash-colored, not very closely-compacted sandstone, through original crevices in which the waves have scooped out entrances like vast corridors. In one of these, which has a sandy beach at its terminus, we encamped. He who has travelled along the shores of the lakes, and encamped on their borders, having his ears, while on his couch, close to the formation of sand, is early and very exactly apprised of the varying state of the wind. The deep-sounding roar of the waves, like the deep diapason of a hundred organs, plays over a gamut, whose rising or falling scale tells him, immediately, whether he can put his frail canoe before the wind, or must remain prisoner on the sand, in the sheltering nook where night overtakes him. These notes, sounded between two long lines of cavernous rocks, told us, long before daybreak, of a strong head wind that fixed us to the spot for the day. I amused myself by gathering some small species of the unio and the anadonta. Captain Douglass busied himself with astronomical observations. We all sallied out, during the day, over the sandy ridges of modern drift, in which the pinus resinosa had firmly imbedded its roots, and into sphagnous depressions beyond, where we had, in the June previous, found the sarracenia purpurea, which is the cococo mukazin, or oral's moccasin of the Indians. Here we found, as at more westerly points on the lake, the humble juniperus prostrata, and, in more favorable spots, the ribes lacustre.[149] [149] Am. Journ. Science, vol. iv. 1822.