Cover -- Half Title -- Title Page -- Copyright Page -- Introduction to Volume Eight -- Critical Introduction -- Table of Contents -- Chapter I St Jago, in the Cape de Verde Archipelago -- Chapter II -- Chapter III Ascension -- Chapter IV St Helena -- Chapter V Galapagos Archipelago -- Chapter VI Trachyte and Basalt - Distribution of Volcanic Isles -- Chapter VII -- Appendix Description of Fossil Shells, by C.B. Sowerby, F.L.S. -- From a tertiary deposit at St Jago, in the Cape de Verde group -- Extinct land-shells from St Helena -- From the Palaeozoic formation of Van Diemen's Land