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The letter is from the Sub Division Officer to The Director Of Kodaikanal Observatory requesting to direct the Observer at Periyakulam to hand over his quarters to the Overser P.W.D Periyakulam as the building is in charge of P.W.D.

Letter from Sub Division Officer to Director of Kodaikanal Observatory regarding Brass Memorial tablet and requesting to acknowledge its receipt.

Letter from Chief Auditor, South Indian Railway Co., Ltd. to Thomas Royds, Director, Kodaikanal & Madras Observatories on the remittance of money that was due against the consignments of Kodaikanal Observatory Office. Each category's specific payment amount is also noted individually.

This letter was about sending the copy of the seismogram obtained during Valparaiso earthquake and replying to the Professor Gerland's questions.

The letter is from Solar Physics Observatory to P. N. Sankarakrishna Aiyar, Meteorological Observer, Periyakulam, informing about the closing of Periyakulam Observatory at the end of that month under the instructions of the Director General of Observatories and also the observer's services will be disposed at the end of a month from that day.

This letter is about sending a copy of the record of the Seismic disturbances obtained from the seismograph in use at the Alipore Observatory for the half year from 1st January to 30th June 1903 together with photocopies.

This is a letter from S. R. U. Savoor Deputy Director Madras Observatory to the Director General of Observatories Simla informing that there is no connection in practice between humidity of air and rate of Riefler clock as indicated by graphs.

The letter was a reply to the letter of the 6th of December 1936 and the reprint sent by John Evershed. He enclosed the letter of A. S. Eddington and replying to it. He explained his point of view on A. S. Eddington objection on his formula for the spectral shift of light.

The letter was a appreciation for John Evershed discovery of spectral shift of light from the edge of the solar disc is really double of Einsteins's value. He mentioned about failure of Einstein's relativity. Further he provided 6 points on Newtonian principles, equation for the motion of a light, spectral shift of light.

The letter was to bring notice on sending a separate cover a copy of the Chapter XIV of Sulaiman's paper on persual.