The letter is to the Director General of Observatories, enclosing a list of instruments used in the Kodaikanal Observatory.

The letter is to The Director General of Observatories, Simla forwarding a plan and an estimate for re-roofing the spectroheliograph building and saying its necessity to prevent the rise in temperature.

This letter to the Director General of Observatories, Simla from Rai Bahadur Bishun Svarup directing to request to send a copy of a type plan or approved design for a small observatory with a revolving dome about 18' or 20' diameter showing mounting for the dome and revolving gear etc.

This letter was written to the Director General of Observatories, Simla, from Kodaikanal, regarding the requirement for new buildings for Poona instruments. This letter mentioned the instruments' names like the 20-inch Equatorial Reflector, Poona revolving dome, 8-inch lens and siderostat, 6-inch Cooke photovisual equatorial and detailed requirements for constructing buildings for those instruments.

This letter was sent to the Director General of Observatories, Simla, from the Director of Kodaikanal & Madras Observatory stating new works contemplated for the coming year are the buildings for the Poona instruments.

The letter is from the Director of Kodaikanal & Madras Observatories to The Director General of observatories, Simla, forwarding the plan and estimate of Rs. 175/- for erecting a verandah in front of the spectroheliograph and requesting the sanction.

This letter was sent to the Director General of Telegraphs from the Director of Kodaikanal & Madras Observatory regarding the time signal on Sundays.

This letter was sent to the Director General of Telegraphs from the Director of Kodaikanal & Madras Observatory regarding time signal on Sundays

This letter to the Director informs about the despatch of instruments to the Kodaikanal address

This letter to the Director informing that A. R. deChazal couldn't take responsibility of the estimate for building expensive grates rather than that he would order a revised estimate for that building