Note 31 — Chapter IX · (continued 2)
Reading edition
See also "The Assaying of Gold Bullion," by C. Whitehead and T. Ulke. Eng. and Mining Journal, New York, Feb. 12, 1898.
Reading edition
See also "The Assaying of Gold Bullion," by C. Whitehead and T. Ulke. Eng. and Mining Journal, New York, Feb. 12, 1898.