This letter was about the latitude and longitude of Perambur and the delimitation at St. George.

This letter is from the Officer in Charge to the Director regarding the declination Magnetograph disinflation for overhauling and readjustment. He also asked to send the Barrackpore Magnetograph or any other available fine phosphor bronze fibre.

This letter is from the officer in charge to the Director of Kodaikanal and Madras Observatories regarding cooperation in taking simultaneous magnetic observations, which Dr. L. A. Nauer of the Carnegie Institution of Washington requested.

The letter is from the meteorologist, Madras, to the Director, Kodaikanal & Madras Observatories, requesting to take necessary steps to prevent the observatory land from being used for other purposes, as the observatory was established more than 100 years ago and it is here as it's away from the public.

This letter is from the Meteorological Reporter to the Government of India reporting for the information of the Government of India being abolished from the 1st February 1898 as an imperial observatory and, therefore, so far as this Department is concerned, the cost for repairs of the observatory need not be incurred.

This letter is from the Meteorological Office, South Kensington, London, regarding the Australian Antarctic expedition and Cooperation in Magnetic Observations.

This letter is from Meteorological Department to the Director of Kodaikanal and Madras Observatories regarding the money spent on comptometer

This letter is from Meteorological Department to the Director of Kodaikanal and Madras Observatories regarding a payment for one spectrum comparing Micrometer supplied to the Kodaikanal Observatory

This letter was sent from the Headmaster of Hindu High School to the Director asking for lend a spare set of Aerological instruments from Kodaikanal Observatory for recording observations.

Letter from the Government Astronomer to the Hon'ble Chief Secretary to Government to make some proposed remarks to Kodaikanal Observatory