follows that such a machine would be de- close and economical scale—using up accumulated sirable. materials, but laying in no new supplies—in order to The machine here shown is well arrranged for its MECHANICAL JOURNAL IN THE WORLD obtain their claims. The ore now being obtained purpose. The seed… … is their aim to present all subjects in the most popula: and attract- ive manner The SCIENTIFIC AMERICAN is published once a week, in convenien form for binding, and each number contains sixteen pages ot useful reading matter, il'‘ustrated with tures, B, closed by a slide, C; this sl having holes a…
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