Dear Friends
Roswag in his book [ ROSWAG, M.C. (1885), Metallurgie de l’argent,
tome V, 2e section, 2e partie, 7e cahier, in FREMY, M., Enciclopédie
Chimique, Dunod ed., Paris, at page 194 section E) line 36] mentions a
mixed (European -American process) in "tonneaux " or Washoe process as
a warm process. Washoe process was ,as long as I know,connected with the
use of iron "pans". Is someone of you informed if and where a Washoe
process, for free milling ores , in "tonneaux" was ever used? With my
best regards .
Marco Mazza-University of Pavia (Italy)
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