This letter to the Executive Engineer of Madura from the Director of Kodaikanal and Madras Observatories for consulting architect to the Government of Madras to furnish the original dorms but he lent it to the sub divisional officer when he was preparing plans for the new domes and also he mentioned it was not like several other plans lent been returned to him.

The letter is to The District Medical & Sanitary Officer, Madura, from the Director of Kodaikanal Observatory requesting to examine A. Y. Subrahmanya Aiyer and certify his fitness for entertainment in the public service as the third assistant of the Solar Physics Observatory, Kodaikanal.

This letter was sent to the Director-General of Observatories, Alipore, Calcutta, from John Evershed, about the anemometer reading at Leh on the 31st December 1920, which was 5.5 miles.

Letter to the Director-General of Observatories regarding the specification of a new Micrometer for the Madras Transit Instrument

This letter was sent to the Director, Meteorological Office, South Kensington, London, asking for a circular letter for cooperation in magnetic observations with the Australian Antarctic Expedition. The director of KSO forwarded this letter to the Officer-in-Charge of the Magnetic Survey of India.

This letter was written to the Director, regretting that they cannot undertake to open the box at their risk, and also they are forwarding the case without opening it and are unable to get a drawback of 7/8 of the duty under the circumstances.

This letter was sent to the Director of Kodaikanal Observatory from Astronomer Royal about information on the Greenwich Numeration of sunspots for July 1911.

This Letter was sent to the Director of Kodaikanal and Madras Observatories regarding a box containing a rain gauge 5" diameter and an Anemometer

This letter was sent to the Director of Kodaikanal and Madras observatories from the consulting architect to the Govt. of Madras to sanction the plans and estimate submitted to the Govt. It was mentioned that glazed and batten windows had been provided for the transit house, as a wooden floor would be expensive so that the concrete floor would remain, and a small window had been added to the top of the anemometer tower.

This letter to the Director of Kodaikanal and Madras observatories for asking to send a sketch of a suitable dome with any hints which is necessary according to him