The letter was an acknowledgment of the photoheliograph received and experiences shared by using equatorial telescope to take solar photographs.

This letter is from Gilbert T. Walker to the Secretary to the Government of India asking for assistance from the Government in securing the loan for the Kodaikanal Observatory of a prism, which was in charge of the Joint Permanent Eclipse committee of the Royal Society and the Royal Astronomical Society.

This letter is from Gilbert T. Walker to the Director of Solar Physics Observatory, Kodaikanal regarding forward of the glass object via post to the Director General of Stores, London enclosing the a copy of a letter

The letter is from Gilbert T. Walker, meteorological reporter to the government of India, to Michie Smith, Director Solar Physics Observatory, Kodaikanal, regarding his visit to Hyderabad to check the telescope purchased by Nawab Zafar Jung.

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 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.

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 is from Gilbert T. Walker, meteorological reporter to the government of India, to J. Wilson, Secretary to the Government of India, regarding an invitation to visit the residency at Hyderabad to pronounce the merits of the new telescope. It also asks, due to lack of time, if it will be possible for Michie Smith to check the telescopes.

The letter is from Gilbert T. Walker to D. W. K. Barr informing that Michie Smith will examine the new telescope as soon as possible and his opinions are fully reliable.

The letter is from D. W. K. Barr to Gilbert T. Walker Meteorological reporter to the government of India, inviting him for an expert opinion on a newly purchased equatorial telescope. The letter includes further details about the telescope, which was mounted in Hyderabad.