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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

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

This item was a optical instrument named as Stereoscope. Stereoscopes are apparently those optical devices that help to view the two images separately and with relaxed eyes. There are two types of stereoscopes as: lens or pocket stereoscopes and mirror stereoscopes. Lens or pocket stereoscopes are great for viewing the whole overlap area of prints up to 9 cm × 13 cm or parts of larger patterns. On the other hand, mirror stereoscopes were designed to accept standard 23 cm × 23 cm metric air photos and work well with A4/US letter-sized prints. Most models come with magnifying options up to eight times, which is pretty impressive. One cool thing about mirror stereoscopes is that they are large enough to allow the analyst to draw beneath them, so it is possible to trace objects identified in the stereoview with a pen onto one of the images or a transparent overlay. However, it's important to remember that this sketch wouldn't have the geometric properties of a map as it contains all distortions present in the base image.

The book Stellar Motions by William Wallace Campbell in 1913 has about 176 pages. It delves into the movement of stars.

This fond contain newspaper clippings related to Bhaskar Dutta and Suri Bhagavantam

The Scientific Memories selection from the transactions of foreign and academics of science and learned societies is a collection taken from foreign journals and edited by Richard Taylor. The fifth volume was published in 1852

The Scientific Memories selection from the transactions of foreign and academics of science and learned societies is a collection taken from the foreign journals and edited by Richard Taylor. The fourth volume was published in 1846

The book was edited by ?Richard Taylor in 1841. It has 618 pages. The book contains various scientific topics and research findings. It is one of the volumes in a series of books published by Richard Taylor between ?1837 and ?1852. The series, titled "Scientific Memoirs," was a compilation of selected works from foreign academies of science and learned societies.

The book Rapid Exploration of the Sun by Alex Smith has 88 sheets that is 176 pages. It was published in1964.

The album includes photos captured during the visit to the Indian Institute of Astrophysics by Prof. S. Chandrasekhar, an Indian-American theoretical physicist and Nobel prize winner in physical science. This particular visit of Prof. S. Chandrasekhar and his wife, Mrs Lalitha Chandrasekhar, was held in 1991 during the directorship of R. Cowsik.