Carpenter, William Benjamin, 1813-1885, Dallinger, W. H. (William Henry), 1842-1909 · Philadelphia, Blakiston · leaf 341
Prazmowski and Hartnack brought these objectives togreat perfection, and were enabled to take the premier place againstall competitors at the exhibition of 1867. The next year, however,Powell and Lealand adopted the system, and in turn they distancedthe Paris opticians and produced some of the… … THE IN1-LI KXCE OF THE DIFFRACTION THEORY } I j
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