The Photographic Atlas of the Normal Spectrum. London: William Wesley & Son. 1894
London: William Wesley & Son, 1894. 1st Edition. FIRST EDITION. EXCEPTIONALLY SCARCE. In the late 19th century, George Cornish Sutton Higgs, a British watchmaker and optician proficient in the sciences, built an extraordinary spectrograph and employed it to greatly advance the application of photography to the study of solar spectra..... More