This letter was sent from Gilbert T. Walker to Charles Michie Smith regarding purchasing a slit-making machine, which they had made as an adjunct to the spectroheliograph. It's mentioned that sanction for the purchase of the machine has been sent home by telegraph by the Government of India, and Smith has to receive it in the case of Spectroheliograph.

The letter is from Gilbert T. Walker to Charles Michie Smith discussing about the enlargement of photos, the orientation of spectroheliograph, scientific instruments, and the sending of 'sun pictures' plates to Christie.

This letter was sent to Charles Michie Smith from Gilbert T. Walker who was glad to pressed Slit Machine at once instead of indenting for it later on

This letter is from Gilbert T. Walker to Charles Michie Smith, thanking him for the copy of Rowland's map and calling his attention to the error at the daily weather summary. He also informs that there is no objection to paying the photographer by piecework, and Lockyer needs the photo heliograms only to measure areas.

This letter is from Gilbert T. Walker to Charles Michie Smith being thankful for contribution to the annual summary and also he gave suggestion about the form of correspondence to keep together everything about buildings and spectroheliograph in separate file

The letter is from Gilbert T. Walker John Evershed regarding a pamphlet requested previously. It states that the requested pamphlet is enclosed with the letter as a gift for the Kodaikanal library and requests if they could send their publications occasionally

This letter was a forwarded copy of this office D. O. No. 312 dated 20th August 1906 (addressed to Professor Fowler, London) to the Director, Solar Physics Observatory, Kodaikanal, for information.

The letter informs about the handing over the reports of different observers in Northern India with regard to the earthquake of the 4th of April

The letter is a copy of a letter from G. S. Rama Ayyar, Superintending Engineer, VI circle to the Secretary to the Government of Madras, Public Works Department regarding funds for a new pump in Kodaikanal Observatory forwarded to the Director of Kodaikanal and Madras Observatories. It requests to allocate the budget for the installation of the pump from the budget 1921-1922.

The letter is from G. S. Rama Ayyar, Superintending Engineer, VI circle to the Director of Kodaikanal and Madras Observatories asking whether arrangements can be made to fit the pump in next April or May as the funds might not be available for the cost of the pump during the official year.