The letter was an order from the Director General of Observatories regarding the upcoming telegrams communication. It informs that all the telegram communications of the Telegram Office, Government of India, were advised to forward to O. H. M. S. weather message forms.

The letter was about the salary given to P. R. Chidambara Ayer when he was working as the Meteorologist at Madras. The letter was written in 1920.

This letter from Gilbert T. Walker was sent to the Director General of Stores regarding a serious impediment to use the dividing engine and rust on the object glass of the microscope. He requested the Director to forward it via post for transmission to the Cambridge Scientific Instrument Company

This Letter is from Gilbert T. Walker to the Director asking about an instrument arrived by 'Jumna' to report on the matter.

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.

This letter is from Gilbert T. Walker to John Evershed regarding the loan and overhauling of a Chronometer if it is impossible.

This letter was sent to John Evershed regarding the estimates for regrinding and figuring the concave back surface of the 12-inch Hyderabad lens to Mr Hydari, Hyderabad (Deccan). The cost bill should be sent directly to the Director, Nizamiah Observatory, Hyderabad, for payment.

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.

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.

This letter is from Gilbert T. Walker to John Evershed about seismic records for changing the mistake in Seismic records in printed forms and in the Monthly Weather Reviews.