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Scientific American, Vol. 46, No. 12 (1882) (1882)

leaf 5

An illustration from Scientific American, Vol. 46, No. 12 (1882), 1882, leaf 5
f the apparatus carries with it certain nificant, No important gravel deposits having suitable water affords will be the period of retention. It has been demon. others in its construction and in the relative sizes of the supply are known to exist. parts composing it. As the current which traverses… … deep mine gold in Idaho is as 60 to 40. The census them much smaller. These preliminaries stated, I NEW MAGNETIC EXPLODER. examination was made too early to include the shall now pass on to a description of the two developments in the Wood River country and the models that I have had constructed in…

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