This letter is from M.R. Ry. A.V. Ramalinga Aiyar Avl., Executive Engineer of Madura Division, to The Director of Kodaikanal Observatory, asking about whether the Carrara marble slab of Rs.9 per sq. ft. or statuary marble slab of Rs.11 per sq. ft. is suitable for placing on the top of the vertical force pillar in the Magnetic Observatory.

This is a letter from Bhaskaran to John Evershed regarding a 12-inch lens, which had been returned and is performing satisfactorily.

This is a letter from chief engineer P.W.D. To the superintending engineer VI circle informing that their office did not receive the plans and estimates for the construction of the engine house within the scheme of electrical installations at Kodaikanal Observatory.

The letter is from C. J. Ussher, Superintending Engineer VI th circle, Trichinopoly, to the director of Kodaikanal and Madras observatories. The letter is enclosed with two estimates, namely estimates for the construction of the glazed verandah by the side of the spectrograph and the construction of a porch in front of the large doorway of the laboratory room. He also asks whether the porch is necessary.

The letter is from C. T. Mullinga, Superintending Engineer, Sixth Circle, to The Director of Observatory, Kodaikanal, forwarding an estimate amounting to Rs.545/- for special repairs to the roof of the spectroheliograph building for his countersignature.

This letter was to inform that C. V. Raman was greatly obliged for M. K. Vainu Bappu's letter of the 8th July 1954. He got one of the Bausch and Lomb catalogues and was very favourably impressed by it and intend to go ahead and purchase one or more of these gratings for his work.

The letter is from C. V. Ramam, Raman Research Institute to M. K. Vainu Bappu, Nizamiah Observatory acknowledging his letter on 26 March 1954 and saying he has a suitable location for solar physics observatory on the institution grounds. The letter also ask to let know presen address of Zeiss and Cox.

The letter is from C. V. Ramam, Raman Research Institute to M. K. Vainu Bappu, Nizamiah Observatory asking about using telescope mirrors made of cast aluminium and about diffraction grating as a preliminary to building solar observatory.

This letter was asking question on using telescope mirrors made of cast aluminium or other light metal, which could be cheap and easy to make and also what kind and size of grating, its makers and price to building a solar observatory.

This letter is from Cambridge Scientific Instrument Co. Ltd. to The Director General of Stores regarding the dividing engine. If returned to them, they will clean it thoroughly free of cost, although they will not be responsible for either the carriage.