. Contributions to the Centennial Exhibition. !25 M > R Q r> W VJ w CO H o > i< Flate ^S. ,SAi C//.ii. A17/.. Q >? ^ CC 1-H 3 s a ^ «) U O w ^ o H 2 § Q ss QD cc H o H s! CD g 5 O O o t? H ^S M H H w a >- o Q H O H d o w > H fe5 O w >n ^ 1 ^ o w OT ?: O tr ^ > 53 !^ T3 «1 a o K Pijrs ;?5. S£E CuAi: X VIII. Instrument for measuring the Reflective Power of Silver and OTHER Metals. Designed by John Ericsson. Manufactured at New York, 1874. FIG. I

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Keywords: ., bookcentury1800, bookdecade1870, booksubjectinventi, bookyear1876