North American Index Fossils, Invertebrates

Book digitized by Google from the library of Harvard University and uploaded to the Internet Archive by user tpb. "The earlier chapters ... appeared during the years 1906 and 1907 ... in the Columbia university School of mines quarterly."--Pref v. 1. Protozoa, Porifera, Hydrozoa, Anthozoa, Bryozoa, Brachiopoda, Pelecypoda, Scaphopoda and Gastropoda.--v. 2. Conularida, Pteropoda, Cephalopoda, Annelida, Trilobita, Phyllopoda, Ostracoda, Cirripedia, Malacostraca, Merostomata, Arachnida, Myriopoda,