Search

Now showing items 1-3 of 3

Rogersville folio, Pennsylvania

Clapp, Frederick G. (Frederick Gardner), 1879-1944. (Geological Survey (United States), 1907)

Barnesboro-Patton folio, Pennsylvania

Campbell, Marius R. (Marius Robinson), 1858-1940.; Clapp, Frederick G. (Frederick Gardner), 1879-1944.; Butts, Charles, 1863-1946. (Geological Survey (United States), 1913)

Amity folio, Pennsylvania

Clapp, Frederick G. (Frederick Gardner), 1879-1944. (Geological Survey (United States), 1907)