This item was about the description of minor planet named as 87 Sylvia. This was discovered on 16th May 1866 by N.R.Pogson. The comparison stars employed have all been observed with the Meridian Circle of the Madras Observatory.

This item was about the Sunspot spectra taken by John Evershed, where he discovered that there is a radial outflow of gases in a sunspot. This effect is now known as the "Evershed Effect".

The fond contain compilition of Newspaper clipping, photographs and graphs of Uranus ring observed at Kavalur observatory

This item concerns about the rare white light flare recorded in hydrogen alpha at Kodaikanal Observatory. These observations were taken on photographic films or plates and digitized for scientific research purposes.