The letter is from E. Maconochie, Under-Secretary to the Government of India, to Gilbert T. Walker, Meteorological Reporter to the Government of India, regarding authorisation on the book and periodical purchases. It states that the government of India has authorised the Director of Kodaikanal and Madras Observatories to purchase books and periodicals up to the limit of his budget grant.

The letter is from E. J. B. Greenwood, Esq., M.Sc., A.M.I.E.E., Electric Engineer to the Government of Madras to the Director, Kodaikanal Observatory regarding letter no.271 stating that he is not sure when he will be back at Kodaikanal but make sure to come that year. He also said he needed help finding a suitable pump and would enquire in Calcutta and Bombay.

The letter is from E. J. B. Greenwood, Electric Inspector to the Government of Madras to The Superintending Engineer informing about the inspection of electrical installation at Kodaikanal Observatory on May 13, 1913, and giving the report. He reports about the non-insulated wires, engine room water connection, bad condition of the pump motor, battery room, and the desk type of 220 volts should be 110 volts only.

The letter is from E. J. B. Greenwood, Electric Engineer of the Government of Madras, to the Director Kodaikanal Observatory, a continuation of letter no. 1601 dated 21-05-1919 asking for the countersignature and submission to the Government for sanction an estimate amounting to Rs.1075 for a suitable pump. Also, ask him to return the forecast and the pump house sketch if the room can't hold a 30" * 15" pump

This letter is from E. Grant regarding an apparatus from the Cambridge Scientific Instrument Company which despatched to .S. "Mombassa" on 26th January , 1901

The letter is from E. C. J. Bond to the Director of Kodaikanal and Madras Observatories requesting that an earth inductor and galvanometer be sent to England as soon as possible as new patterns for new ones they are indenting for.

The letter is from E. C. J. Bond to the Director of Kodaikanal and Madras Observatories informing that the spare earth inductor and galvanometer are stored at Dehradun and other related specifics.

The letter is from E. C. J. Bond to the Director of Kodaikanal and Madras Observatories informing that the earth inductor and galvanometer have been despatched by the insured parcel and asking for arrangements to be made for the agent to collect the parcel at the railway station and to be forwarded.

The letter was written by E. C. J. Bond, the officer in charge No. 18 party (Magnetic), Survey of India, to the Director of the Madras and Kodaikanal Observatories, Kodaikanal, Via the Superintendent of the Trigonometrical Survey. Through this letter, E. C. J. Bond was conveying three suggestions to the magnetic observers to raise the calibre of the observatory magnet.

The letter was written by E. C. J. Bond who was the officer in-charge No. 18 party (Magnetic), Survey of India to the Director of the Madras and Kodaiknal Observatories, Kodaikanal. In this letter, he claims to have sent a registered parcel post to Kodaikanal that contained three strips of fine phosphor bronze fibre and four incredibly fine tungsten wires that could be used to suspend the magnetograph's declination. The letter was written in Dehra Dun in 1919.