This letter was about to furnishing the eclipse photographs as requested by Govt. of India.

This letter discuss about equation of a hyperbola and their work.

This letter was about three volumes of Transit Observations and Mural Circle Observations that had been stored some time at the Indian store depot have recently been presented to the Royal Astronomical Society

This is a Letter from R. K. Rangachan to R. L. Jones regarding the lunar eclipse. It is a query asking if there was a lunar eclipse visible in India on May 7, 1715. It also says that A.D.Maestro Servel and Dikshit stated in their Hindu calendar that there was a total eclipse of the sun on April 22 previously.

The letter discusses on comparison on graphs that gives the difference between the shift of line at the various points, and the shift at the centre to be compared with his formula. At the backside of this letter S. M. Sulaiman's handwritten explained the formula.

The letter was a appreciation for John Evershed discovery of spectral shift of light from the edge of the solar disc is really double of Einsteins's value. He mentioned about failure of Einstein's relativity. Further he provided 6 points on Newtonian principles, equation for the motion of a light, spectral shift of light.

The letter is from the Director General of stores to Charles Michie Smith regarding volumes of the mural circle and transit observations. It consists of a copy letter from the Royal Astronomical Society and a list of 6 folio volumes presented to the Royal Astronomical Society.

The item contains Madras equatorial observations of the occultation of Venus that occurred in three different dates; 18 July, 1865, 3 November 1872 and 2 may 1875 recorded by N. R Pogson from Madras Observatory.

The item comprises observations made as Madras Equatorial Observations of transit of Mercury occurred on the 11th and 12th of November 1861 by N.R. Pogson. The document contains observational data and critical notes about the astronomical event. Mercury's transit across the Sun occurs when the planet Mercury passes directly between the Sun and a superior planet.

The note includes information about planet observation between 1862 and 1865. Around 29 planets have had their observations recorded.