This item was an instrument used in surveying land, alignment, testing, and calibrating optical Instruments. It is basically a refracting telescope. Whose optical elements tilt angles with high accuracy of the order of arcsecs.

The album contains archival documents related to the building, instruments and observations at the Madras Observatory. It mainly includes an old photo of the Madras Observatory, a photocopy of the first observation taken in 1786 from the observatory, two pictures of Kater's pendulum hung in front of the Haswell clock in the observatory, a sketch of the Madras Observatory building from 1848 Taylor's catalogue and painting of Madras coast by Daniel.

This letter informing that a grass minimum thermometer by J. Hicks was brought into use on the 1st instant in place of another one which was found broken on the previous morning

This item was a request letter to send the measuring scale for prominence photographs and directing its exact location of where it is available.

This Letter is from J H Field to the Director regarding a parcel post of 2 grass minimum thermometers No 1328922 and 1328930 both by J. Hicks which were required for the use of Kodaikanal Observatory

This letter was about three volumes of Transit Observations and Mural Circle Observations that had been stored some time at the Indian store depot have recently been presented to the Royal Astronomical Society

The document is a letter from Charles P. Butler to Gilbert T. Walker, the Meteorological Reporter to the Government of India and Director General of Indian Observatories, Calcutta, in 1903. The document conveys that the Kodaikanal Observatory had received the case containing eight thermometers and one rain glass for five gauges that the meteorological department had delivered.

This letter was about the reply to the earlier circular, stating that the date of reading is given back of the sheet, thermograph cage and the number of dry and wet bulb thermometers.