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The item is a circular from the Meteorological Department describing the rules fixing and use of Symon's Raingauge.

The item is a memorandum to the meteorological observer, informing them to keep observation notebooks and calculation books for coding the daily weather telegram for only two years and to destroy those for the third preceding year.

The item is a forwarded copy of letter No.4744 from the Director of Telegraphs to the Director of Kodaikanal and Madras Observatories, requesting to give information to the Superintendent of the Central Telegraph and the Meteorological Office whenever the tracing indicates magnetic disturbances until the end of February 1903.

The item is letter from the Meteorological Department to the Director of Kodaikanal & Madras Observatories, containing a copy of letter No.1286 from the Meteorological Reporter to the Government of India and Director General of Indian Observatories to the Director General of Stores, acknowledging Letter No.937 dated 19 Jan 1905 and saying that the Director of Kodaikanal Observatory is unable to send the details of the plates for the spectroheliograph until he has experimented with the plates, the information will be send as soon as it is available.

The item is Letter from the Meteorological Department to the Director of Kodaikanal & Madras Observatories, containing a copy of letter No.543/43 dated 27 Oct 1903 from the Officer in charge, No.26 Party (Magnetic) to the Meteorological Reporter to the Government of India and Director General of Indian Observatories, proposing a visit of 7 to 10 days to the Colaba Magnetic Observatory during the latter part of January and Kodaikanal during the following month.

The letter is from the Director General of Observatories to the Director of Kodaikanal and Madras Observatories regarding the test observation that is not satisfactory, hence asking the director to spend more time verifying the instruments.

The letter is from Director General of Observatories to the Director of Kodaikanal and Madras Observatories regarding earthquake record.

The item provides information about the rainfall organisation, such as who registers the rainfall of India in each province and the exact duties of these officers. It explains how to fix, inspect and use the rain gauge properly.

The fonds contain circulars and letters from the Meteorological Department, Government of India.