John William Salter (1820-1869) was an English naturalist and geologist, best known for his work as palaeontologist to the Geological Survey of Great Britain. This is a complete catalogue of the Cambrian and Silurian fossils in the Geological Museum at the University of Cambridge. Preceded by a detailed introductory section on the Pal ozoic system, the catalogue is arranged by geological strata, covering the various groups of Cambrian and Silurian...