TY - BOOK TI - How old are fossils? VL - no.9 (1927) UR - https://www.biodiversitylibrary.org/item/25151 PB - Field Museum Press CY - Chicago PY - 1927 N1 - Pages also numbered 141-[152] at foot of pages. --- Fieldiana, Popular series, Geology, was published by Field Museum of Natural History, Dept. of Geology as Leaflet (no. 1-4, 1922-1923) and as Geology leaflet (no. 5-14, 1925-1933). The Leaflet series AU - Roy, Sharat Kumar, AU - Field Museum of Natural History. Department of Geology. KW - Datering KW - Fossielen KW - Fossils KW - Paleontology ER -