This is a letter from the superintendent madras division to the director of Kodaikanal and Madras Observatories regarding special attention paid to the matter of time signal and it being sent from Department office of at Madurai to the Observatory.

A letter from the Director stating the change in focal length of the lens in question is not likely to be found seriously objectionable, if the lens proves satisfactory in other respects

This letter from John Evershed to the Director to acknowledge the receipt of plans and estimates for the quarters for the photographic assistant

This is a form of statement to accompany all applications for sanction to expenditure not provided for in budget

A letter to the Director from the chairman of kodaikanal municipal council about the unsatisfactory design of latrine at the new photographic assistant quarters

In this letter, William Butler was asked about the complaint about the rusty condition of the dividing machine, which happened because the firm used low-quality vaseline coating before shipment.

This letter is from E. Grant regarding an apparatus from the Cambridge Scientific Instrument Company which despatched to .S. "Mombassa" on 26th January , 1901

In this correspondence list principal astronomical instruments to the Madras Observatory and for Kodaikanal Observatory are mentioned

This letter is from the Officer in Charge to the Director regarding the declination Magnetograph disinflation for overhauling and readjustment. He also asked to send the Barrackpore Magnetograph or any other available fine phosphor bronze fibre.

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.