| Show STAMP TAM P MILL NJ I 1 L L VS laboratory TESTS special grapevine service if tadpole springs nevada feb 10 at a f meeting of the tadpole mining club held yesterday an inquiry was received asking why the saving of values by stamp mills does not agree with laboratory mill tests the question was debated and no agreement could be arrived at the metallurgist mem ber of the club claimed that laboratory tests are based upon scientific facts and were therefore correct the mill experts present claimed that they knew how to save all the values that could be saved with stamps the president of the club ordered that the question be decided by arbitration and appointed mr holmes M E as referee this gentleman after due deliberation reported as follows 1 I carefully examined the modus operandi operand of the mill tests and noticed that in crushing ore in mortar or bucking board two or more mechanical movements are used first blows then rotary grinding with the end of the pestle the first breaks the ore and the latter pushes particles against particles under pressure which is abrasive by which means the gold is brightened and is properly prepared to cohere attach embrace or kiss the mercury cury it is not reasonable to expect that the single mechanical blow of a stamp can equal the combined motions used in hand practice in preparing the pulp voted that if mill tests are to conform to mill practice the then n the end of the pestle should not be wiggled |
