Copy letter from Herbert Rix, to Professor Jospeh Norman Lockyer, Fellow of the Royal Society The Meteorite Spectrum plate which Lockyer could not pass was the work of the Woodbury Photo Printing Company; the others were the work of the Direct Photo Engraving Company. Rix has consulted with the Woodbury Company and they have promised to try and improve the plate and send a further proof. 11 October 1894