This fond contains letters, annual expenditure reports and bills of Kodaikanal and Madras Observatories. It also contains correspondence of John Eliot,Charles Michie Smith and R.E.V.Arbuthnot during July 1901 to March 1903 regarding the index slip, meteorological summaries, seismological reviews and disturbances and other reports like annual expenditure, bills, and telegraphs. It has a report on the condition and proceedings of the government observatory, Colaba, written by N.A.F.Moos. It also has letters from the Royal Society of India, H. Grubb, J. Larmer, R. Fuess, William Butler and Charles P. Butler to the Meteorological Department and Kodaikanal & Madras Observatory.

The item is a letter to the Director of the Kodaikanal and Madars Observatories to let them know that circular No. 5 of 1905 was annexed to the letter.

This letter was about the extension of tenure of C. M. Smith for one year from 13th July 1909, the date on which he attains the age of 55 years.

The item is Letter from the Meteorological Department to the Director of Kodaikanal & Madras Observatories, containing a copy of letter No.543/43 dated 27 Oct 1903 from the Officer in charge, No.26 Party (Magnetic) to the Meteorological Reporter to the Government of India and Director General of Indian Observatories, proposing a visit of 7 to 10 days to the Colaba Magnetic Observatory during the latter part of January and Kodaikanal during the following month.

The fonds contain circulars and letters from the Meteorological Department, Government of India.

The letter is from the Electrician of Govt. Telegraph Department to Director of Solar Physics Observatory enquiring if the measurements of natural currents made on telegraph lines during magnetic disturbance can be advantageous and, if so, asking to warn the telegraph department to make observations when needed.