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This item is about the importance of the optical telescope and the location chosen for the observatories, such as Kodaikanal and Kavalur. The item also speaks of the importance of these weather conditions for astronomical observations.

This item was about the second marriage invitation of Mr.N.R. Pogson. Isis Pogson was pleased to announce Mr.N.R. Pogson was going to marry with Miss Edith Silley on 25 October 1883 at 4 o'clock in St. George Cathedral.

The item is a 6 inch transit circle. The transit circle is an instrument used to determine the declination of stellar onjects. It consists of a circular scale kept perpendicular to the rotating axis of a telescope tube.

This item was about the photograph of Thomas Royds. Thomas Royds (1923-1937) succeeded John Evershed as the Kodaikanal Observatory Director in 1923 and retired in 1937.

This letter informing estimate about the provision for wooden floors to the bedrooms also and for tiling the roofo the outhouses to the quarters

This item was a stellar object requires two coordinates to locate it on the sky, as the sky is a two-dimensional plane. One of these coordinates known as declination. This is similar to the two co-ordinates viz. latitude and longitude, defining a point on the surface of the earth. The transit circle is an instrument used to determine the declination of stellar onjects. It consists of a circular scale kept perpendicular to the rotating axis of a telescope tube.

The fond contains Results of observations of the fixed stars made with the Meridian Circle at the Government Observatory , Madras

The fond contains Result of astronomical observations made at the honourable, the East India company's Observatory at Madras volume 1 to 5.

The item is a telegraph about telegraph lines affected by magnetic storm

The item has two telegraph, one was John Evershed asked to send his date of visit and journey from Kodaikanal and the second one was mentioning the New Zealand govt acceptance of terms proposed for his visit as shown at Simla.