This letter mentions Dr.M. K. Vainu Bappu has been elected the President of the IAU for the term 1979-1982, followed by Bappu's distinguished life since his education from Hyderabad to Harvard and his contributions, awards, honours and leadership at national and international levels.

This letter concerns the role of astronomy. The contribution of astronomy to scientific development and the significant achievements and its continuous efforts.

This item was about the second marriage invitation of Mr.N.R. Pogson. Isis Pogson was pleased to announce Mr.N.R. Pogson was going to marry with Miss Edith Silley on 25 October 1883 at 4 o'clock in St. George Cathedral.

The CD contains photos of a visit by Subrahmanyan Chandrasekhar along with his wife. The photos include discussions, signing in a document, and having tea while conversing.

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The item was about M.K.Vainu Bappu being elected as the President of IAU and also speaks about other achievements and his position.

This is the reprinted edition of the “Transit of Venus” original pamphlet published in 1874 by C.Ragoonath Chary. IIA library has redesigned the cover page and added the foreword by Prof.S.S.Hasan, Director, Indian Institute of Astrophysics, Bangalore and brought out the pamphlet before the world wide event of Transit of Venus on 6th June 2012 and published under IIA Archives Publication Series.

This item was the photostate copy of the original pamphlet of "Transit of Venus" by C.Ragoonatha Chary published in English languages in 1874.

The item is a 6 inch transit circle. 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.

The book Traite experimental of de L'electricite et du Magnetisme transalates to Experimental Treatise of Electricity. M.Becquerel, of the Academy of Sciences of the Institute of France, wrote this book. It is published in 1840