This letter was from the Director of Kodaikanal & Madras Observatory informing about the erection of new buildings for Poona instruments and outside painting of Observatory Domes, the Spectroheliograph building and the magnetic observatory.

This letter to the Superintending Engineer from the Director mentioning the return of the estimates for the painting the two domes of main building countersigned and also he noted that He had substituted "Lead white paint" instead of "Zinc white paint". He also mentioned about returning the estimate for painting of the spectroheliograph roof unsigned as that is unnecessary and only painting of sliding roof only of the spectroheliograph building may be taken up.

This letter to the Sub-Division Officer from the Director requesting to arrange for the repair of painting of three domes and closing leaks in the office buildings. It was specifically mentioned that painting is badly needed as they have not been painted since 1915.

This letter to the Executive Engineer of Madura from the Director of Kodaikanal and Madras Observatories for consulting architect to the Government of Madras to furnish the original dorms but he lent it to the sub divisional officer when he was preparing plans for the new domes and also he mentioned it was not like several other plans lent been returned to him.

This letter to the Director of Kodaikanal and Madras observatories for asking to send a sketch of a suitable dome with any hints which is necessary according to him

This letter was written to Gilbert Thomas Walker, the Director General of Observatories from Secretary to Government, Bombay Castle, Educational Department, in reply to the letter regarding removing the revolving dome of Poona Observatory to Kodaikanal. In this letter, it was stated a plan and estimate for another roof for the observatory building.

This letter is from W. J. Dunlop to the Executive Engineer informing that the domes etc belonging to the observatory building should be closed under machinery and the cost of such items should be deducted from the capital cost. Also a reply letter from the director of Kodaikanal and Madras Observatories Michie Smith questioning this is a very troublesome work and also he mentioned that this cannot be reached by any considerate of cost.

This Letter is from D.Marshall executive engineer presidency division to the director of Madras Observatory regarding an estimate amounting to Rs.810 for special repairs at Madras Observatory. It also makes provisions for the repair works done during the erection of new dome.

This is a correspondence of the specifications for an observatory dome 18 feet in diameter regarding the previous letter. Here some hand drawn sketch of a dome specifications also included as reference.