Diagrams, meteorite spectra by unknown artist Six printed plates of meteorite spectra, labelled maps 1-2, 2a and 3-5, accompanying Joseph Norman Lockyer's paper 'Preliminary note on the spectra of meteorites'. Subject: Astronomy These prints were published in volume 43 of the Proceedings of the Royal Society alongside the paper 'Researches on the spectra of meteorites. A report to the Solar Physics Committee. Communicated to the Royal Society at the request of the committee'. 1887