The letter is about water vapour observations. Bappu was also asking whether the point source lamp was used. He also mentioned that he would be in Bangalore on April 27.

The letter is from M. K. Vainu Bappu, Nizamiah Obsevatory to Prof. Raman telling that it is best to plan on acquiring equipment specifically for research on the sun. Adding that the sun plays important role in our general understanding of Astrophysics.

This letter was about shifting the Lallemand cell to Kodaikanal. He left a separate note to Dr.Sinvhal also in this matter. Dr.Bappu explained its origin and its journey from Paris to Nainital.

This letter was about the performance of the Newton spectrograph, prepatory work and observations on sky.

The letter is from M. R. Ry. A. V. Ramalinga Aiyar, Executive Engineer, Madura Division, to the Director, Kodaikanal Observatory, informing that transverse stiffeners may bend in the middle, and he suggests using horizontal ties and cross braces to stiffen the roof if it wouldn't be hindering instruments. He also said that he would get the transit shed repaired when he goes to Kodaikanal on 27 that month.

The letter is from M. R. Ry. K. N. Aiya Iyer to the Director, Kodaikanal and Madras Observatories, requesting to allow Public Work Overseer Mr K. Subbiah Pillai to enter the land to survey the Observatory area according to the government order to submit a revised description of the boundaries of the Municipality.

The letter is from K. N. Aiya Iyer, Chairman, Municipal Council to the Secretary to the Government of Madras, Local Self Government asking the Ministry to approve the proposal to extend municipal limits so as to include the Director's residence and other buildings belonging to the Observatory stating it was proposed in 1908 and its other pros and cons.

The letter is from M. R. Ry. P. V. Chari Avergal, offg. Electrical Engineer to the Government of Madras to the Assistant Director, Kodaikanal Observatory, forwarding an estimate of Rs.340 for extending the pump house and requesting him to countersign it and the estimate of Rs.1075 for a suitable water pump and forward them to the Government for Administrative approval.

This letter came from M.R.Ry.A.V.Ramalinga Aiyar to the Director about revised estimate of Rs. 1560 for constructing 3 additional peons quarters at Kodaikanal

This letter from Major S.G. Burrard to the Government Astronomer mentioning that Lenox Conyngham is dissatisfied with his Zenith Telescope results and with determinations of the Micrometer value, so he asked for sparing Dehra Zenith sector till next September.