F. Lowe. _Journ. Soc. Chem. Industry_, Sept. 1889.
[30] Percy, _Metallurgy of Silver and Gold_, p. 263.
[31] See also "The Assaying of Gold Bullion," by C. Whitehead and T.
Ulke. _Eng. and Mining Journal_, New York, Feb. 12, 1898.
[32] Consult Percy's _Metallurgy of Silver and Gold_, p. 172; A.C.
Claudet, _Trans. Inst. Mining and Metallurgy_, vol. vi. p. 29; G.M.
Roberts _Trans. Amer. Inst. Mining Engineers_, Buffalo Meeting, 1898; J.
and H.S. Pattinson, _Journ. Soc. Chem. Industry_, vol. xi. p. 321.
[33] Heycock and Neville, _Journ. Chem. Soc._, 1892, p. 907.
[34] G.M. Roberts.
[35] A.C. Claudet.
[36] "The Sampling of Argentiferous and Auriferous Copper," by A.R.
Ledoux. _Journ. Canadian Mining Institute_, 1899.
[37] NaCNO + BaCl_{2} + NaHO + H_{2}O = NH_{3} + BaCO_{3} + 2 NaCl.
[38] HCy + NaHO = NaCy + H_{2}O.
[39] 2KCN + AgNO_{3} = KAg(CN)_{2} + KNO_{3}.
[40] If it be desired to make a solution so that 100 c.c. shall be
equivalent to 1 gram of sodium cyanide, then 18.085 grams of silver
nitrate should be taken for each litre.
[41] AgNO_{3} + KAgCy_{2} = 2 AgCy + KNO_{3}.
[42] AgNO_{3} + KI = AgI + KNO_{3}.
[43] See pp. 322, 323, and 324 for a description of the methods for
measuring the quantity of acid or alkali.
[44] KCN + HCl = KCl + HCN
[45] Taking 16.0 grams of ore, each c.
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