This is a correspondence of the specifications for an observatory dome 18 feet in diameter regarding the previous letter. Here some hand drawn sketch of a dome specifications also included as reference.

This document contains details about an astronomical telescope that was indigenously constructed. It also includes testimonials about the telescope.

This letter was forwarded to the Director requesting to communicate the date for the photographic plates

This is a document containing the list of instruments available in the store at Kodaikanal Observatory as of November 1925

In this correspondence list principal astronomical instruments to the Madras Observatory and for Kodaikanal Observatory are mentioned

A reply letter from the Director mentioning the impossibility of fixing the sunshine recorder satisfactorily on the pier which was built for it. He also mentioned he will build a larger pier in a new and better site and will cement it in place as suggested

This reply letter mentions that the reflected ray is deviated approximately 1 degree when the Nephoscope was rotated

This is a reply letter to the Director from Gilbert Walker with reference to the previous letter. It was mentioned that the sunshine recorder should be firmly fixed so that it will not be accidentally thrown out of adjustment.

This is a reply letter to the previous one for agreeing to send the Dehra Zenith sector which is not in use so anytime they can send and this also mentioned no need to send a man for packaging

This is a reply letter to T. Royds stating the length and width of the morse tape required for chronograph