This document was about brief description of Dr.M. K. Vainu Bappu's academic career, membership, participation in committees and societies, the medals awarded and the research area for which he contributed.

This fond contains official letters related to Charles P. Butler during 1903-1904. It includes communications with the Meteorological Reporter, the Government of India and Director General of Indian Observatories, Simla, and the Officer Commanding Royal Engineers, Madras.

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.

This letter was about arriving of grating and considered not perfect but overall, it's good.

This letter was reply to the telegram from the Metrorological Reporter saying that the Evershed Spectroscope has been forwarded to the Director General of Stores India Office and the instrument should be returned back to Kodaikanal Observatory as soon as possible to work on the Sun especially for prominence work on Sun.

This letter was about the reply to the earlier circular, stating that the date of reading is given back of the sheet, thermograph cage and the number of dry and wet bulb thermometers.

The letter was from Charles P. Butler to John Eliot the Meteorological Reporter to the Government of India and Director General of Indian Observatories, Simla, in 1903. The letter is about increasing the power of the apparatus used for sun-spot spectra of Kodaikanal Observatory.

The letter was from Charles P. Butler to John Eliot, the Meteorological Reporter to the Government of India and Director General of Indian Observatories, Simla, in 1903 about the broken-down condition of the fencing of rain gauge at Periyakulam station.

The item provides information about the rainfall organisation, such as who registers the rainfall of India in each province and the exact duties of these officers. It explains how to fix, inspect and use the rain gauge properly.

This letter was about the Estacion Sismologica de Cartuja, Granada had requested the copies of the Indian Seismographs of the Iberian earthquake of the 23rd April last if it is recorded.