Diagrams, spectral graphs by [William de Wiveleslie] Abney Four pages of graphs showing spectra of the haloid salts of silver, including silver iodide, silver nitrite and silver bromide. Subject: Chemistry / Physics Prints of these diagrams were published in volume 33 of the Proceedings of the Royal Society alongside the paper 'On the effect of the spectrum on the haloid salts of silver, and on mixtures of the same'. 1881