This letter was about the Tungston Arc Lamp with power supply is being sent through A.Manickam, as instructed by director. He was seeking acknowledgement for the same to make necessary entries in the stock book.

This letter was about water vapour measurement made at Kodaikanal.

In this letter, it is stated that the tabulations might stop, although the instruments may be retained in action. It was mentioned that he sent the sunshine records also with others for tabulation in the Calcutta office.

In continuation of letter S.D.O. 7867, it was informed that the grating had not yet been delivered, and the related information from contractors was also enclosed.

This item was about the Sunspot spectra taken by John Evershed, where he discovered that there is a radial outflow of gases in a sunspot. This effect is now known as the "Evershed Effect".

This item was about the high resolution line sketch spectra captured by John evershed during his experiment at Kodaikanal Observatory. While experimenting, he came across to capturing the high resolution spectra of Altair, Nova Aquila, Arcturus in the observatory. In this sketch, he pictured the resolution spectra that he observed as Umbra for high resolution and Penumbra for low resolution.

This item was about total solar eclipse of 18th August 1868. At Masulipatnam Pogson detected the hydrogen line emission, with a spectroscope. He saw a bright yellow line near the position of D lines of Sodium. The line originated from hitherto unknown element later termed as helium after the source of earliest detection. Hand coloured sketch of the solar spectrum during the Total Solar Eclipse of 1868. Hand coloured picture of the sun before and after the total solar eclipse 1868.

This item is a group photo of employees in the Kodaikanal Observatory in 1913.

The letter is a Government Order forwarded to the Director of Kodaikanal & Madras Observatories informing about the sanctioning of Rs.6380 for the construction of a photoheliograph at Kodaikanal Observatory.

The letter was discussing about the simple methods deviced for daily weather telegram