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This letter is from John Evershed to G. C. Simpson, Director General of Observatories, in reply to D.O. No. 6347 about the visibility of eclipses from India and Mesopotamia in 1920. It was mentioned about the difference between Indian Standard time and Mesopotamian times of the eclipses.

The letter is from G. C. Simpson, imperial meteorologist, to John Evershed, Director of Kodaikanal and Madras Observatories, regarding 2 micrometres. It states that there were two Hilger bills as there were two micrometers filled with a new screw coating, and only one of the bills has been paid for.

This letter is about Simla informing of not having records of Iberian earthquake

The letter is from Thomas Royds to G. C. Simpson regarding a book on arctic meteorology. It requests for receipt of the same.

The letter is from T.Royds to G. C. Simpson, Director General of Observatories, Simla, regarding a statement in nature on the August 26, 1915 issue. It states that the nature of copy has been sent to John Evershed but the paper by Glauert is being sent with the letter.

The letter informs the correction of the data for the annual report 1913, which G. C. Simpson, the Imperial Meteorologist in SIMLA, prepared. The mistakes in the lowest barometer reading from August to December are mentioned in a tabular form.

The letter served as a response to The Director General of Observatories's inquiry, stating that he had not received any orders from outside.

The letter was from Thomas Royds, Assistant Director of Observatory, Kodaikanal to G.C. Simpson, the Imperial Meteorologist, Simla. Through this document, Thomas Royds conveyed a new method for taking the mean wind directions in this letter. The document was written in 1914 from Solar Physics Observatory, Kodaikanal.