The letter is a reply to letter no. 2741 E stated that the pump house is only 6' * 6' and doesn't have space for a belt drive, suggesting a rotary pump for the motor drive. The second sheet is the plan of the motor house.

This letter asks for sending an ordinary telegram as the eight-column decimal Comptometer has been received and the bill has already paid or not

This letter asking for the proposal of 'expensive grates' and a reasonable size of a fireplace.

This letter is discussing there will be some difficulty with 12th readings of cloud motion meteorological observations on holidays unless some special arrangement is made

The letter was written by E. C. J. Bond, the officer in charge No. 18 party (Magnetic), Survey of India, to the Director of the Solar Physics Observatory, Kodaikanal. E. C. J. Bond has mentioned some suggestions to the magnetic observers to get accurate values during the observations. It was written in 1920 in Dehra Dun.

The letter was written by E. C. J. Bond, who was the officer in charge No. 18 party (Magnetic), Survey of India, to the Director of the Madras and Kodaikanal Observatories, Kodaikanal through the Superintendent of the Trigonometrical Survey. This letter lists the dates that the observation result was missing, together with the declination traces, H.F. traces, and V.F. traces. It was written in 1920.

This letter encloses a distribution list for the photographic plates ordered in the last indent

This is a letter for Director-General of Observatories from India Meteorological Department accompanying an invoice Rs 6/13/- from the mathematical Instrument Office, Calcutta on account of the morse papers for chronograph supplied to the Magnetic Observer

This letter is for returning the plans and estimates for the photographic assistant quarters countersigned

This letter for sanctioning an expenditure of Rs. 2680 on the construction of quarters for the third Assistant at the Observatory at Kodaikanal