ished by the periodical press will find here just the concise resume of many recent discoveries that they need. The Railway Age says, This review of inventions which have had their inception and developmentwithin the nineteenth century Is very timely and appears to be a complete review of the… … ) 1901 SCIENTIFIC AMERICAN, INC. 8o Sftitutitit %mmtm. February 2, 1901.
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