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The CD contains the digitized book of 26 pages on transit of venus.

The book the constellation as seen in Southern India by R. J. Pocock . It was reprinted from the Madras Times. It was published in 1923

This item was about the Donohoe Medal of the Astronomical Society of the Pacific presented to M.K.Vainu Bappu in commemoration of the discovery of a comet on 02-07-1949. This medal was awarded to the discoverer of a new comet. This medal was donated by Joseph A. Donohoe, a wealthy businessman from San Francisco. The medal was announced at the July 1889 meeting of the Society.

The book The elements of Astronomy deduce and from observations demonstrated upon the mathematical principles is written by J.Robertson. It was published in 1950

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

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

This item was about the hand-colored picture of the Sun, as observed by N.R. Pogson at Masulipatnam with the Smythian five-foot Telescope from the Hartwell observatory, which has a power of 52. In the picture, Pogson has made two sketches of the solar eclipse, explaining how the Sun was seen immediately after the disappearance and how it was seen immediately before the reappearance.

This item was about the measurements of spectrum and solar spots. It is divided into two parts. The first part describes the scale division of the spectroscope micrometer that defines the bright lines observed in the spectrum of the southeast by east prominence and the ordinary lines in the solar spectrum that were measured before and after the eclipse. The second part includes a sketch depicting the principal solar spots measured at Masulipatnam on August 18, 1868. The sketch shows four spots: A, B, C, and D.

The book, The History of the Royal Society of London: for the Improving of Natural Knowledge fourth edition, was published in 1734. It was written by Thomas Spart. It has 440 pages.

This item was about the coverage of the death of Chintamani Ragoonatha Chary published in Madras Mail. He was the head assistant at the Madras Observatory for many years. He served at the institute for the past 35 years; He worked under Late Major W. S. Jacob, Colonel W. K. Worster, and Colonel J. F. Tennant; he is a strict, honest person and has the skills of an observer.