Henry Carvill Lewis

In 1880 he was chosen professor of mineralogy in the Philadelphia Academy of Natural Sciences, and in 1883 he was appointed to the chair of geology in Haverford College, Pennsylvania.

[2] During the winters of 1885 to 1887 he studied petrology under HF Rosenbusch at Heidelberg, and during the summers he investigated the glacial geology of northern Europe and the British Isles.

In 1884 his Report on the Terminal Moraine in Pennsylvania and Western New York was published: a work containing much information on the limits of the North American ice-sheet.

In Britain he sought to trace in like manner the southern extent of the terminal moraines formed by British ice-sheets, but before his conclusions were matured, he died from typhoid fever at Manchester, England on July 21, 1888.

[4] The results of his observations were published in 1894, entitled Papers and Notes on the Glacial Geology of Great Britain and Ireland, edited by Dr HW Crosskey.