The letter was from Charles P. Butler toJohn Eliot, the Meteorological Reporter to the Government of India and Director General of Indian Observatories, Simla, in 1903. This reply letter states that it was impossible to take one of the present solar physics observers from duty and devote him to magnetic work.

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 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 on giving the information requested by professor Birkeland on photograms.

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.

This letter was reply to the questions contained in the letter dated July, 1906, from Prof. Schuster on behalf of the International Union for Solar Research.

This a letter of enquiry regarding sending of lenses located at Nizamiah Observatory could be sent to Evershed. It also encloses a copy of Pocock's letter where description about the lenses are mentioned.

The letter was about acknowledging John Evershed for his invaluable help gave them. Further he was seeking help on two points that, one was having a coolie to climb up the pillar and unclamp and the second was spectrum of Sirius.

The letter contains quoted text of Gilbert T. Walker to Mr.Glacy at Hyderabad stating the usefulness of the lenses that were lend to Kodaikanal Observatory in 1915 for employment in Kashmir.