This is a reply letter from Gilbert T. Walker to the Director of Solar Physics observatory, Kodaikanal requesting for a special indent for the requests of clocks in the above letter. He also asks for precise details about the required clocks.

This is a letter from Gilbert T. Walker to Charles Michie Smith stating the inadequacy of the single clock at Madras for the time service. This letter asks for a detailed proposal for supplying the deficiency of clocks.

This is a letter from Gilbert T. Walker to Charles Michie Smith informing that there might be difficulty in getting clocks from the mathematical instrument department.

This is a letter from Gilbert T. Walker to the Director of Kodaikanal and Madras observatories informing despatch of drum by post and a request for acknowledgement.

This letter was sent to Charles Michie Smith from Gilbert T. Walker who was glad to pressed Slit Machine at once instead of indenting for it later on

This letter is from Gilbert T. Walker to Charles Michie Smith, thanking him for the copy of Rowland's map and calling his attention to the error at the daily weather summary. He also informs that there is no objection to paying the photographer by piecework, and Lockyer needs the photo heliograms only to measure areas.

This is a reply letter from Gilbert T. Walker to the Director of Kodaikanal and Madras observatories informing that the drums of the thermograms are not always interchangeable. It further states that he is giving calcutta office instructions regarding sending of the drums.

The letter is from G. S. Rama Ayyar, Superintending Engineer, VI circle to the Director of Kodaikanal and Madras Observatories asking whether arrangements can be made to fit the pump in next April or May as the funds might not be available for the cost of the pump during the official year.

The letter is a forwarded copy of a letter from G. S. Rama Ayyar, Superintending Engineer, VI circle, to the Executive Engineer, Madura Division, asking for the action report taken on the installation of a new pump, asking to take it urgently as the Director needs it to be installed before Christmas.

This document originates from G.J.J. Harris, a consulting architect the Government of Madras engaged. It is addressed to the Madras and Kodaikanal Observatory director about the approval and submission of plans and estimates related to the construction of Kodaikanal Observatory buildings. Various aspects necessitated official sanction, encompassing the workshop for the mechanic, estimates for water supply in the director's residence, construction of a verandah for writers' quarters, provision of bookcases and furniture, landscaping of the grounds, provision of mats for the assistant's house, erection of additional outhouses for the first and second assistant quarters, and the construction of the observer's house at Periacolum, along with associated compensation. The communication underscores the comprehensive nature of the proposal, seeking the necessary approvals for diverse elements crucial to the successful realization of the Kodaikanal Observatory infrastructure.