TY - JOUR AB - <p>Review of: "The Iowa Geological Survey, Volume 3, Second Annual Report, 1893" by Samuel Calvin, Charles Rollin Keyes, and G. E. Patrick.</p> AU - DA - 1895/4// DO - 10.17077/0003-4827.2017 IS - 1 VL - 2 PB - State Historical Society of Iowa PY - 1895 TI - The Iowa Geological Survey T2 - The Annals of Iowa UR - https://pubs.lib.uiowa.edu/annals-of-iowa/article/id/10011/ ER -