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Scientific American, Vol. 87, No. 19 (1902) (1902)
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{Entered at the Post Office uf New York. N. Y.,as Second Class Matter, Copyright. 1902, by Munn & Co.) Vol. LXXXVII.—No. 19, NEW YORK, NOVEMBER 8, 1902. 38200 nd YEAR. EsTABLISHED 1845, THE DREDGER “INDIANA” PROVIDED WITH A CONVEYOR AND AN AUXILIARY SAND PUMP, … A CALIFORNIA SINGLE BUCKET GOLD DREDGER.—([See page 311.] By means of this machine the bottom of the river is dug up and delivered into a sluice whence the sand is separated and washed on gold-saving tables and the waste material is conveyed away by an endless carrier, © 1902 SCIENTIFIC AMERICAN,…Internet Archive · Public domain (published before 1931). Free to use for anything.
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