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This letter is from John Evershed to G. C. Simpson, Director General of Observatories, in reply to D.O. No. 6347 about the visibility of eclipses from India and Mesopotamia in 1920. It was mentioned about the difference between Indian Standard time and Mesopotamian times of the eclipses.

The letter was an acknowledgment of the photoheliograph received and experiences shared by using equatorial telescope to take solar photographs.

The letter was to inform Edward Barnes to arrange for trained workers for the magnetic observation that P. R. Chidambara Aiyar was supposed to do.

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

The letter is to A. Vipan suggested starting the work on the roof of the spectroheliograph building as the weather was fine then, and the funds required had been met by reappropriation.

This letter is from John Evershed to A. Vipan to take necessary steps to put proper sanitary condition in Kodaikanal

This letter discusses for comments on real justification on Newtonian principles predictions.

The letter was a reply to A. S. Eddington acknowledging his work on redshift and his proposal to incorporate factor of 2 in the process. Further he mentioned about Thomas Royds results from the eclipse spectra.

This letter discusses about Bakerian lecture with reference to stationary H and K lines of stars.

The letter discusses on the H and K wave-lengths and discusses the recent results that confirm the earlier results, exactly in the case of H and with a difference of 001 with K.