The Auriferous Gravels of the Sierra Nevada of California J D Whitney - Hardback £99.95 Find out more
Report of a Geological Survey of the Upper Mississippi Lead Region, 2 authors - Paperback £14.47 Find out more
An Address on the Propriety of Continuing the State Geological Survey of California, Delivered Before the Legislature at Sacramento, Thursday Evening, January 30th, 1868 J D Whitney - Paperback £7.25 Find out more
