http://www.rssboard.org/rss-specification 720 XTF Search Results (docsPerPage=100;f5-subject=Geology -- North America) https://catalog.wrhs.org/collections/search?docsPerPage%3D100;f5-subject%3DGeology%20--%20North%20America Results for your query: docsPerPage=100;f5-subject=Geology -- North America Thu, 01 Jan 1970 12:00:00 GMT The lake age in Ohio: or, Some episodes during the retreat of the North American ice-sheet. Claypole, Edward Waller, 1835-1901 https://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc https://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc Thu, 01 Jan 1970 12:00:00 GMT Travels in North America in the years 1841-2: with geological observations on the United States, Canada and Nova Scotia. Lyell, CharlesSir, 1797-1875 https://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc https://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc Thu, 01 Jan 1970 12:00:00 GMT Shelled invertebrates of the past and present: with chapters on geological history. Bassler, Ray S. (Ray Smith), b. 1878, Resser, Charles Elmer, 1889-, Schmitt, Waldo Lasalle, 1887-, Bartsch, Paul, 1871-1960 https://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc https://catalog.wrhs.org/collections/view?docId=marc/skclmarc202890322046876.mrc Thu, 01 Jan 1970 12:00:00 GMT