Image taken from page 481 of 'A Treatise on Ore Deposits ... Translated from the second German edition by Frederick Prime ... Revised by the author. With numerous illustrations' (11058683995)

Image taken from: title: "a treatise on ore deposits. Translated from the second german edition by frederick prime. Revised by the author. With numerous illustrations" author: cotta, bernhard von. Contributor: prime, frederick. Shelfmark: "british library hmnts 7104. Bb. 10. " page: 481 place of publishing: new york date of publishing: 1870 publisher: d. Van nostrand issuance: monographic identifier: 000796148.