Inside Out Library · Explore
Scientific American, Vol. 62, No. 22 (1890) (1890)
leaf 3
slot and apertures. The tapering section easily conveyed at will from place to place. ed by Mr. Edward Z. Kidd. The concentrating table fits into a casing section, upon which is fitted a spoke For further information relative to this invention ad- consists of a series of sections of a pane of glass… … possibilities. KIDD’S ORE CONCENTRATOR, © 1890 SCIENTIFIC AMERICAN, INC.Internet Archive · Public domain (published before 1931). Free to use for anything.
More pictures from Scientific American, Vol. 62, No. 22 (1890)
More like this
