I. Echinoderms; Asteroidea and Echinoidea. 1849.- II. Trilobites: Phacops, Illaenus, Asaphus, Ogygia, Calymene, Olenus. 1849.- III. Echinodermata: Asteroidea and Echinoidea. 1850.- IV. Echinodermata: Echinoidea. 1852.- V. Echinodermata: Asteroidea, Echinoidea. 1856.- VI. Fishes: Elasmodus, Palaeoniscus, Lepidotus, Pholidophorus, Ophiopsis, Pytcholepis, Leptolepis, Lophiostomus. 1852.- VII. Trilobites: Phacops, Cheirurus, Sphaerexochus, Encrinurus, Cyphaspis, Acidaspis, Trinucleus, Remopleurides, Cyphoniscus, Aeglina. 1853.- VIII. Fishes: Asteracanthus, Pholidophorus, Histionotus, Aspidorhynchus, Ptycholepis, Oxygnathus, Pycnodus. 1855.- IX. Fishes, illustrating the genera Cosmolepis, Thrissonotus, Pachycormus, Endactis, Centrolepis, Nothosomus, Pleuropholis, Megalurus, Macropoma. 1858.- X. Fishes: Preliminary essay upon the Devonian epoch ... 1861.- XI. Trilobites: Agnostus, Stygina, Asaphus, Aeglina, Staurocephalus, Angelina, Olenus, Phacops, Paradoxides. 1864.- XII. Fishes: Illustrations of the structure of the Crossopterygian Ganoids ... 1866.- XIII. Fishes: Thrissopater. ... 1872 14