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Scientific American, Vol. 66, No. 25 (June 1892) (1892)
leaf 3
ops once inserted it cannot be taken out of gold size and thoroughly mix. Then add 24 drops until it registers, neither can a second AN IMPEOVED ORE SAMPLING DEVICE. EEC0ED of spirits of turpentine and mix. Apply with a thin The illustration represents an ore sampler arranged registry be made… … of air is formed faction. HAWLEY'S ORE SAMPLING DEVICE. © 1892 SCIENTIFIC AMERICAN, INC.Patents · Munn · Canyon · Famine · Scientific American · Stevens · Letters patent · Good roads · Patent office · Time ball · Grand Canyon · Sewing machine · Hot water · Stevens institute · Fur seals
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