Narrative of an Expedition to the Source of St. Peter’s River, Lake Winnepeek, Lake of the Woods, &c.

The Volumes are in Very Good Condition Expertly re-backed in gilt-ruled speckled calf, with the newer spines divided into six compartments by five raised bands with red morocco letter-piece and black morocco volume label in the second and third compartments. Externally the boards and spine are lightly scuffed in general, with any significant damage repaired, and with the board corners bumped a bit. Internally the leaves are generally clean and amply margined, with some light toning at the plates and in the margins, with some light foxing otherwise. Please Take the Time Necessary To Review the slideshow In Order To Gain The Fullest Possible Understanding Of The Content And Condition Of This Volume.

The volumes measures about 22 cm. By 14 cm. By 3 cm. Each leaf measures about 210 mm. By 130 mm.

Of William H. Keating

William Hypolitus Keating was an American geologist. His father, Baron John Keating, of Irish ancestry, had been an officer in the French army in the West Indies and had settled in Wilmington, Delaware. He was educated at the University of Pennsylvania, and then in France and Switzerland, where he studied mining. In 1822, he became Professor of Chemistry and Mineralogy at the University of Pennsylvania and a member of the American Philosophical Society,

He is perhaps best known for his work on the staff of Stephen Long’s expedition to the Great Lakes in 1823, an account of which he published in 1824. In the account he first hypothesized the existence of what is now known as Lake Agassiz. Formed at the end of the last ice age during the retreat of the great North American glaciers Lake Agassiz was, at its peak, much larger than any currently existing lake. The tremendous significance of the discovery has come to be appreciated in recent decades because the draining of Lake Agassiz into the North Atlantic Ocean is now generally thought to have been responsible for sudden periods of cooling of Northern Hemisphere climate at the end of the Pleistocene. The most dramatic of these periods of cooling is known as the Younger Dryas.