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 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 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.

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.

This item was about the Satyendranath Bose Medal of the Indian National Science Academy for the year 1983 awarded to M.K. Vainu Bappu. The Satyendranath Bose medal is awarded every three years to a distinguished scientist in the field of physical sciences.

This item was about the total solar eclipse that occurred on 7 March, 1970. The resulting photograph shows the Sun completely covered by the Moon, with only the corona visible and, which was captured by the camera.

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.

This item was an instrument used in surveying land, alignment, testing, and calibrating optical Instruments. It is basically a refracting telescope. Whose optical elements tilt angles with high accuracy of the order of arcsecs.

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