WASH BULL 37-2 P 304; WASH BULL 65 P 9,13; WASH MINERAL PROPMICROFILM, WASH BUR M AND G3.5-4.5 FT QTZ VEIN; FE-STAINED, IN CALC SLATE; PROD AROUNDPROD: AFTER 1900, 7.75 TONS, 36 OZ AG/TON, 12.75 TONS,39 OZ AG/TON PRIOR TO 1897: 3.5 TONS 166 OZ AG/TON