e abstruse terms. To every intelligent mind, THE BEST SAFE NEW YORK BKLTINO & PACKING CO., 15 PARK BOW, N. Y, this journal affords a constant supply of instructive reading. It is promotive of knowledge and progress In John H. Chkbtbs, Treas., Branches: 16? I*ke St., Chicago i 308 Chestnut St.,… … 861 BAMdwaT. New York. Shafting and Gearing.^®^^ij,,^s:hi^f^' THOK W4»OI> Sc CO. THE "Scientiflc American" ieprinted with CHAS 3'id and Wood Wts., BRANCH OFFIGBS.-No. 632 wad 624 F Streetr Pw ENEU JOHNSON A CO.'8 WK. Tenth and Lom- Philadelphia, Pa, Otto Building, near 7th Street. Wastilngton, D.…
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