The item comprises observations made as Madras Equatorial Observations of minor planet Harmonia of its observations taken in November and December 1861 by N.R. Pogson. Harmonia (minor planet designation: 40 Harmonia) is a giant main-belt asteroid discovered in 1856.

The item comprises of observations made as Madras equatorial Observations of Europa of its discovery and observations taken by N.R. Pogson.

The item comprises observations made as Madras Equatorial Observations of Comet II; its observations were taken in July 1861 by N.R. Pogson.

Madras and Kodaikanal Reports for the years 1898-1921, except 1899-1900 annual report.

This item was about the image of the M.K.Vainu Bappu wandering in the garden.

This item is about the speech delivered at the IAU general assembly. Bappu spoke on various aspects of astronomy and the fraternity of astronomers. He greeted the astronomical fraternity for their contributions to the field of astronomy.

This is a tentative list of subject for papers and discussion there on at the Pan-Pacific Science Congress, Australia, August, 1923

This item was a list of expenditure and available balance towards solar works at Kashmir

This item contains a note by the chief engineer public works department stating an estimate amounting to Rs.4400 for a steel Framed dome for the Madras Observatory which should be of Sir Howard Grubb standard design.

This item contains letters from F. W. Ashpitel, officiating consulting architect to government , to the secretary to government Public works department submitting the sanction and provision for Rs.960 for constructing stables at the Madras Observatory.