percussion tables, [88];

Frue vanner, [89], [90];

pan concentrators, [90];

amalgamators, [91-93];

lixiviation, [93] et seq.;

calcination, [100] et seq.;

how to avoid loss in cleaning up, [148]

Gold-field, Mount Brown [17], [18]

Griffin Mill, [67], [69]

Grusonwerk ball mill, [71]