This letter is from the Director of Kodaikanal and Madras Observatories regarding specifications for new grating for Solar Physics Observatory, Kodaikanal

The letter is from the superintendent of the trigonometrical survey to the Director of Kodaikanal and Madras Observatories, forwarding proofs of the results of the reduction of the sun charts.

This letter was a request of asking one or two original negatives of spectra of the centre and the limb of the Sun.

The letter is to Gilbert T. Walker regarding 'Air blast'.

This letter was sent to John Evershed from F. W. Dyson, asking to forward the solar photographs for some specific dates.

This letter was sent to John Evershed from the Director General of Observatories, attaching the sunshine records for Srinagar.

This letter was sent to the Astronomer Royal from John Evershed about the dispatch of the solar photographs and the double exposure plates for orientation in two separate parcels. Also mentioned the date and time of each photograph sent to him.

This letter was sent to the Astronomer Royal, Royal Observatory, Greenwich, from John Evershed about discontinuing the use of the old photoheliograph. Because this Photoheliograph was giving reverse images. And also it is mentioned that no photographs would not be obtained at Kodaikanal from July 1, 1915 until further notice comes.

This letter to the Director from H.S. Northey Esquire informing that no such building as the "Solar Physics Observatory" occurs in the register of Public Buildings in charge of PWD and also requested to let him know the correct name of the building. From the records of this office it appeared no certificates for Municipal taxes paid by him for the two buildings referred to in his letter had been granted by this Department in Previous years.

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