v. 1. Containing descriptions of the organic remains of the Lower division of the New-York system. -- v. 2. Containing descriptions of the organic remains of the Lower Middle division of the New-York system. -- v. 3. Containing descriptions and figures of the organic remains of the Lower Helderberg Group and the Oriskany sandstone, 1855-1859 (2 v.). -- v. 4, pt. 1. Containing descriptions and figures of the fossil Brachiopoda of the Upper Helderberg, Hamilton, Portage and Chemung Groups, 1862-1866. -- v. 5. Lamellibranchiata (5 v.). -- v. 6. Corals and Bryozoa, containing descriptions and figures of species from the Lower Helderberg, Upper Helderberg and Hamilton Groups. -- v. 7. Trilobites and other crustacea of the Oriskany, Upper Helderberg, Hamilton, Portage, Chemung and Catskill Groups. -- v. 8. An introduction to the study of the genera of Palæozoic Brachiopoda (2 v.) 29 32