A philosophical and practical essay on the gold and silver mines of Mexico and Peru :
containing the nature of the ore, and the manner of working the mines, the qualities and use of quicksilver, the cleansing and refining these metals : with many useful observations concerning the assay of metals, the manner of conveying them to Europe, and remarks on the gold mines in Hungary, and those of Asia and Africa /
translated from a letter wrote [sic] in Spanish, by Father James Hernandez of the Society of Jesus ...

APA Citation

Hernández, J. (1755). A philosophical and practical essay on the gold and silver mines of Mexico and Peru: containing the nature of the ore, and the manner of working the mines, the qualities and use of quicksilver, the cleansing and refining these metals : with many useful observations concerning the assay of metals, the manner of conveying them to Europe, and remarks on the gold mines in Hungary, and those of Asia and Africa. London: Printed for J. Scott ....

MLA Citation

Hernández, Jaime, Father. A Philosophical And Practical Essay On the Gold And Silver Mines of Mexico And Peru: Containing the Nature of the Ore, And the Manner of Working the Mines, the Qualities And Use of Quicksilver, the Cleansing And Refining These Metals : With Many Useful Observations Concerning the Assay of Metals, the Manner of Conveying Them to Europe, And Remarks On the Gold Mines In Hungary, And Those of Asia And Africa. London: Printed for J. Scott ..., 1755.