This item is Analytical Theory of the World System volume 2, written by French astronomer Gustave de Pontecoulant and published in 1829. It covers topics such as the movements of celestial bodies, equations of motion, and other aspects of celestial mechanics. It has 506 pages.

The Recent Progress of Astronomy: Especially in the United States was a book by Elias Loomis and published in 1856. It was about the history of astronomy, providing valuable information about the advancements and discoveries in the field during the early nineteenth century. It has 502 pages.

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 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 fonds consists of newspaper clippings on the study of supernova phenomena.

The photographic slides contain images of Neptune's atmosphere, Winds on Jupiter, Comet, Saturn's storm, the moon and rings of Uranus, Saturn's rings, Jupiter and some observational graphs. The slides were received from Dr. Vasundhara.

These Photographic slides contain compressed photos from Our Universe Book.

The book was second edition of 'On the connexion of the physical sciences' written by Mary Somerville published in the year 1835. The book contains 494 (i-xvi) pages. The book describes about astronomy, physics, chemistry, geography, meteorology and electromagnetism as they were scientifically understood at the time.

This fond contains materials related to John Evershed that contains general local office materials including letters of all local government and administrations, proceedings, reports to the government of India etc., A large portion of the collection series contains information on observations from various scientists.

This letter was sent to the officer in charge of No. 26 Party (Magnetic), Dehradun, from John Evershed enquiring about the reading of the 13th temperature in the underground room of the Magnetic Observatory, which might be discontinued on Sundays.