The letter is from C. J. Ussher, Superintending Engineer VI th circle, Trichinopoly, to the Director of Kodaikanal and Madras Observatories forwarding the estimate for constructing the Photo-heliograph building with a dark room and a porch at Kodaikanal asking for countersignature and return.

The letter is from C. J. Ussher, Superintending Engineer VI th circle, Trichinopoly, to the Director of Kodaikanal and Madras Observatories. It is a letter forwarding the fresh plans with an estimate amounting to Rs.14000 for the construction of photo spectroheliograph buildings at Kodaikanal, which has to be countersigned and then submitted to the government for sanction.

This is a letter from C.A.Smith Secretary of government to Superintendent engineer sixth circle informing that a grant of Rs.10000 has been sanctioned for the year 1913-1914 for a new building to be built in Kodaikanal for the purpose of storing astronomical instrument.

This is a letter from chief engineer P.W.D. To the superintending engineer VI circle informing that their office did not receive the plans and estimates for the construction of the engine house within the scheme of electrical installations at Kodaikanal Observatory.

This letter was sent from Bhaskaran to John Evershed regarding the official receipt for Rs.92-10-0, which was remitted to Hyderabad on 26th June 1923 and has yet to be received.

This is a letter from Bhaskaran to John Evershed regarding a 12-inch lens, which had been returned and is performing satisfactorily.

This is a letter from Bhaskaracharya Joshi, astronomer and astrologer, to the superintendent of the astronomical observatory, regarding the starting point of the Hindu zodiac. In this letter he has asked a series of questions.

This letter was about Bok along with his wife was in India during the visit to State Observatory of Uttar Pradesh. He was grateful for the fine reception and gave many lectures, recommended some suggestion on the telescope and observatory.

This letter was reply to the Librarian, IIA about sending the photographs of the late Dr.M.K.V. Bappu taken during Regional Meeting on Astronomy in Bandung (August, 1981). In the picture he is shown to shake hand with the then Vice President of the Republic of Indonesia, Mr.Adam Malik.

This letter is from M.R. Ry. A.V. Ramalinga Aiyar Avl., Executive Engineer of Madura Division, to The Director of Kodaikanal Observatory, asking about whether the Carrara marble slab of Rs.9 per sq. ft. or statuary marble slab of Rs.11 per sq. ft. is suitable for placing on the top of the vertical force pillar in the Magnetic Observatory.