Description:
The Arizona Bureau of Mines receives many inquiries regarding
methods for treating gold and silver ores. Due to the widespread
interest in the treatment of these ores at this time, the
similarity in the inquiries received, and the fact that many letters
have been addressed to the Bureau by persons who desire replies
in non-technical language, it was believed advisable for the Bureau
to reprint Bulletin No. 133 entitled "Treating Gold Ores,"
published in April, 1932,for the use of persons not familiar with
technical terms. It is obvious that a paper so written cannot cover
the subjects included in more than a superficial manner, but it is
believed that the Bureau can better serve the demand for such
information by sending a bulletin rather than writing individual
letters on the subject when requested to do so. 28 p.