Detroit: Wayne State University Press, 1976. 212p., illustrated from old plates (including drawings by Xantus), cloth boards in dj. Slightly edgeworn from storage, plainly never read or much handled.
The bulk of Xantus' text concerns Baja-- "the west coast of Mexico." At random, this cataloguer turned to a description of mining and smelting mercury, occupying several pages. Little on gold mining.