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 Observer at Periyakulam Observatory, stating the list of instruments in the Periyakulam Observatory with the name of their maker. It also says all are in good condition.

The letter is from The Observatory, Periyakulam, to The Director in charge of the Solar Physics Observatory regarding barometers and barographs in the Taluq building. And he is requesting action to remove the things in the room for taking correct observations.

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 a payment for one spectrum comparing Micrometer supplied to the Kodaikanal Observatory

The item is letter from the Meteorological Department to the Director of Kodaikanal & Madras Observatories, containing a copy of letter No.1286 from the Meteorological Reporter to the Government of India and Director General of Indian Observatories to the Director General of Stores, acknowledging Letter No.937 dated 19 Jan 1905 and saying that the Director of Kodaikanal Observatory is unable to send the details of the plates for the spectroheliograph until he has experimented with the plates, the information will be send as soon as it is available.

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.

This letter reports on the occurance of the earthquake in five villages of that area,with lasting period of 4-5 seconds

The letter is from the General Superintendent, P. W. Workshops, Madras, informing about his visit to Kodaikanal Observatory on 3rd & 9th December 1904. It also mentioned the present condition of the sliding roof and his suggestions for improvement.