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 Image: Title: Author: Date of Original:
461. Electrolytic precipitation of gold from cyanide solutions Electrolytic precipitation of gold from cyanide solutions Gates, Arthur Oliver 1898
462. Electrolytic estimation of tin Electrolytic estimation of tin Jeffry, Leon A. 1896
463. Electrolysis of underground conductors Electrolysis of underground conductors Beck, W. J.; Yount, J. M. 1896
464. Electro-metallurgical furnace and its products Electro-metallurgical furnace and its products May, W. T.; Rodman, T. H. 1896
465. Electro-chemical process for extracting gold and silver from rebellious ores Electro-chemical process for extracting gold and silver from rebellious ores Stabler, L. J. 1898
466. Electro-chemical analysis Electro-chemical analysis McCoy, Herbert N. 1892
467. Electricity as applied to printing press machinery and tests on same Electricity as applied to printing press machinery and tests on same Wynn, J. G. 1900
468. Electrical development of a waterfall Electrical development of a waterfall Jamison, A. P. 1898
469. Electric motors and methods of testing their efficiency Electric motors and methods of testing their efficiency Wilmore, John Jenkins 1888
470. Efficiency tests on the Baldwin compound locomotive Efficiency tests on the Baldwin compound locomotive Cooper, Eugene S.; Meriam, Joseph B. 1897
471. Efficiency tests on direct current enclosed-arc lamps Efficiency tests on direct current enclosed-arc lamps Slimp, Oliver F.; Cromwell, Lewis W. 1900
472. Efficiency tests of the municipal arc-lighting plant of the city of Martinsville, Indiana Efficiency tests of the municipal arc-lighting plant of the city of Martinsville, Indiana Dryden, Harry W.; Axtell, G. W. 1897
473. Efficiency tests of locomotive Schenectady Efficiency tests of locomotive Schenectady Kerr, Edward Wilson 1895
474. Efficiency tests of a New York air pump Efficiency tests of a New York air pump Wiselogel, R. F. 1895
475. Efficiency test upon the Purdue electrical power plant Efficiency test upon the Purdue electrical power plant Clarke, F. A.; Marks, T. R. 1896
476. Efficiency test of the citizens' lighting plant Lafayette Indiana Efficiency test of the citizens' lighting plant Lafayette Indiana Allen, T.S.; Knight, E.R. 1899
477. Efficiency test of muncie electric light plant Efficiency test of muncie electric light plant Haymond, W. O.; Gough, Cale R. 1901
478. Efficiency test of a Westinghouse one horse power single phase induction motor Efficiency test of a Westinghouse one horse power single phase induction motor Browning, Earl Harrison; Gregg, Carl Reed 1897
479. Efficiency test of a transformer from its curves Efficiency test of a transformer from its curves Ratcliff, L. S.; Morawick, H. H. 1896
480. Efficiency test of a 20 H.P. single phase induction motor Efficiency test of a 20 H.P. single phase induction motor Tanner, A. R.; Eaton, Wyman 1901
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