Aperçu gratuit du livre The Discovery and Geognosy of Gold Deposits in Australia: With Comparisons and Accounts of the Gold Regions in California, Russia, India, Brazil, &c. Including a Philosophical Disquisition On the Origin of Gold in Placer-Deposits and in Quartz-Veins
The Discovery and Geognosy of Gold Deposits in Australia: With Comparisons and Accounts of the Gold Regions in California, Russia, India, Brazil, &c. Including a Philosophical Disquisition On the Origin of Gold in Placer-Deposits and in Quartz-Veins