Shaler, Nathaniel, and Davis, William Illustrations Of The Earth’s Surface, Glaciers, James R. Osgood and Co., Boston, 1881. Folio, 198 pages, 25 plates. 25 Heliotype plates with 33 illustrations, 3 of maps, the rest photographs of Glacial scenery, some two to a page. Plates by the Heliotype Printing Co., Boston, from photographs by W. H. Jackson, Braun, Frith, Knudsen, Bourne & Shepard. A major example of Heliotype printing and the first of what was to be a series. This seems to have been the only publication to make it to press.