The letter was mentioning about enclosed letter from the Director of the Kodaikanal Observatory regarding the disposal of the Photoheliograph on loan from Greenwitch Observatory

The letter was an reply to Mrs. John Evershed saying that you enquired of my assistant about the name of "Evershed" as applied on lunar crater. Further he mentioned about its co-ordinates and enclosed the portion of the NASA map showing the crater named to it.

This letter was a reference to John Evershed letter that discusses regarding the spectral lines

The letter disusses on John Evershed's paper which was written 18 moths ago saying that he gone through the paper and a good deal about the factor 2 and the red-shift. A. S. Eddington said that he now more or less concerned that Einstein's theory is wrong on this point, and the true theoritical red-shift is twice his value as you find. Further he mentioned that the Thomas Royds confused him on the desirable value as the eclipse.

This fond contains official letters related to William Butler from March to November 1908.

The letter was written by Houghtons Ltd. to The Secretary of State for India in Council on the enquiry about the quality of the spectrograph slides being sent to Kodaikanal Observatory.

The document is a letter from the Director General of Stores to the Director of Kodaikanal and Madras Observatories regarding the poorly maintained photographic plates that were sent to the Kodaikanal Observatory.

The item is a letter from the Director General of Stores to the Director of Kodaikanal and Madras Observatories, enquiring about the sensitivity of the photographic plates supplied to the Kodaikanal and Madras Observatories by the Imperial Dry Plate Company.

Charles P. Butler sent this letter to Gilbert T. Walker on installing a spectroheliograph in the Kodaikanal Observatory. The letter was sent from the Royal College of Science, London, on 3rd June 1904.

The item was about M. K. V M. K. Vainu Bappu's critical condition at Munich after kidney failure and heart by-pass surgery at Munich's University Clinic. They had been fighting to save M. K. Vainu Bappu's life.