This letter is from J. Evershed to Dr. Gilbert T. Walker regarding sending of the lantern slides. Particulars of lantern plates is attached with this letter

This letter was about the enclosed list of photographic plates sizes and designations.

This letter was about the prints of the spectrum taken on the plates sent by Imperial Dry Plate Company and its relative sensitiveness.

This letter was about the Sandell Ordinary Plates special express and the change in the required plates. Evershed's report on the plates sent by Imperial Plate Company.

This item was reply to letter S.12098, saying that he forwarded one packet of the Seed Gilt Plates out of which two of the plates exposed and show the defects. It also contains the report of the plates by Evershed, who has worked with the plates. In addition the letter has statement of Kodak Company and the mistake made by the Company.