This letter is from N.H.Nicholson executive engineer of Madura to the Director of Kodaikanal and Madras Observatories regarding the execution of work in Kodaikanal Observatory Building. It states that any new construction will be observed by Nicholson and these constructions should only be done with the knowledge of the department after the proposals were properly considered.

Letter from H. H. Turner, Chairman of British Association Seismological Committee to J.H. Burgess, Earthquake Observatory, SHIDE, Isle of Wight regarding update of work after the death of John Milne

This letter was about the work of repairs to the Spectro Heliograph building, Kodaikanal.

The letter is from H. B. Peirce, General Superintendent, Public Works Department, to The Executive Engineer, Madura, explaining the arrangement suggested by Mr. Evershed for moving the sliding roof at Kodai. He said the shaft would pass through the room close up to the wall behind the mirror of the spectroheliograph apparatus, but he also said that he was not satisfied that the arrangement would work well unless a handle and winch were fixed at each end of the shaft.

The letter is from H. B. Peirce, General Superintendent, Public Works Department, to The Executive Engineer, Madura Division, stating the willingness of The Director of Kodaikanal Observatory to have a handle of winch inside; the complicated arrangements proposed formally may be altogether dispensed with, and a cog wheel gearing direct with a pinion may be introduced instead.

The letter is from H. B. Peirce, General Superintendent, Public Works Workshops, to the Executive Engineer, Madura Division, informing about the modification asked by Charles Michie Smith for the sliding roof under condition and the extra cost of Rs.120 is to be approved by the Executive Engineer.

The letter is from H. B. Peirce, General Superintendent, Public Works Workshops, to the Executive Engineer, Madura, enclosing two methods proposed for moving the sliding roof at Kodaikanal Observatory, requesting to suggest which to use.

The letter is from H. B. Peirce, General Superintendent, Public Works Department, to The Executive Engineer, Madura Division, forwarding an estimate of Rs. 365 for fitting up rack bar gear to the sliding roof at Kodaikanal Observatory with two winches in the interior.

The letter is from H. B. Peirce, General Superintendent, Public Works Department, to the Director of Kodaikanal Observatory regarding the proposal to have a handle for the roof, enclosing a letter from the Executive Engineer advising to have a second winch on the opposite wall to make the roof move smoothly.

The letter is from H.B. Peirce, General Superintendent, Public Works Workshops, to the Director of Kodaikanal Observatory, requesting to let know at earliest convenience the exact distance between the rails of the sliding roof of Kodai Observatory lately supplied by the shops.