This letter is from the Superintendent of Telegraphs to the Deputy Director regarding time signalling.

This letter is from the Superintendent of Telegraphs to the Deputy Director regarding the signalling of time, which will be only for 2 minutes in future.

This letter is from the Superintendent of Telegraphs to the Director of the Solar Physics Observatory, Kodaikanal, regarding the two-minute time signals. The Deputy Director of Madras Observatory had been requested to send time signals from 15:58 to 16 hours.

The Superintendent of Telegraphs, Central Telegraph Office, Madras, has written to the Deputy Director, Madras Observatory, Madras, regarding the inconvenience faced by the Alipore Observatory in operating without regular time signals at 16 hours on Sundays. While there are no objections to discontinuing the signals elsewhere, it has been decided that they shall not be sent to any office on Sundays, starting from June 6, 1909, except to the Alipore Observatory.

This letter is from the Superintendent of Telegraphs, Trichinopoly Division, to John Evershed asking about rainfall frequency in the last three years in some places regarding some interruption that happened to telegraph communication.

This is a letter from the superintendent, observatory for surveyor general to the director of Madras Observatory to enquire about the value of 5hr.20mts.59.6secs.

This is the copy submitted to the Chief Engineer, Public Works Department, for information with reference to his memorandum about the estimate for the writer's quarters and the funds required for the year 1904-05 amounting to 10,950.Along with a copy of a letter from Charles. P. Butler, Ag: Director, Kodaikanal & Madras Observatories to Executive Engineer Madura regarding some construction needs at the Solar Physics Observatory, like a permanent building to hold the 4-inch photoheliograph, a glazed verandah for keeping the north-western side of the observatory dry, an open verandah for the Bookbinder's shed and quarters for the writer of the observatory.

The letter was sent to A. Bamford, who was the Superintendent Observatory, Colombo, as a reply to letter No. F M/567. The letter discussed the Great Trigonometrical Survey of India, Specifically the determination of the longitudes of the Madras.

The letter was sent from Thomas Royds to Gilbert T. Walker, the Director-General of Observatories, giving information about mean wind directions taken from Kodaikanal Observatory. The letter was sent from Kodaikanal to Simla in 1914.

The letter was about the zodiacal light observation in 1916 done by A. A. Narayana Ayyar from Solar Physics Observatory, Kodaikanal. Thomas Royds sent the letter to Maunder in 1916. A. A Narayana Ayyar was the third assistant of Kodaikanal Observatory during that time.