This letter was written to the Executive Engineer, Madura Special Division, about the allotment of funds to the Madras P.W.D. that would be made by the Imperial General of Observatories for some building works. And the partial allotment of funds at the request of the Director General of Observatories.

This is Reply letter to the Director General of Observatories from John Evershed stating the instrumental co

This is Reply letter to the Director General of Observatories from J.W. Hearn sanctioning the extension of Mr John Evershed's services for a further one year, effective from 26th February 1922.

This reply letter was sent to the Deputy Director of Madras Observatory informing the amount had been recovered from A.A. Narayana Aiyar in three instalments at Rs. 26-10-8 in the pay bills for April, May and June 1913.

This is Reply letter to Mr Adams about working out seismograms so that they adopt the form proposed by the International Commission.

This is a reply letter stating that the Director cannot undertake the construction of any new building without the sanction of the Government of India because it is not in the main building of the observatory but a very short distance away

Reply letter regarding furnishing some instruments whose list is enclosed with this

This is a reply letter referring the previous letter the correct meaning of "Solar Physics Observatory Office portion" and "Engine Room" and also requested to furnish the certificate at an early date as the objection has been pending for over 2 months.

The letter was from Thomas Royds, Assistant Director of Observatory, Kodaikanal to G.C. Simpson, the Imperial Meteorologist, Simla. Through this document, Thomas Royds conveyed a new method for taking the mean wind directions in this letter. The document was written in 1914 from Solar Physics Observatory, Kodaikanal.

This letter was from the Director of Kodaikanal & Madras Observatory informing about the erection of new buildings for Poona instruments and outside painting of Observatory Domes, the Spectroheliograph building and the magnetic observatory.