The letter is a forwarded copy of a letter from G. S. Rama Ayyar, Superintending Engineer, VI circle, to the Executive Engineer, Madura Division, asking for the action report taken on the installation of a new pump, asking to take it urgently as the Director needs it to be installed before Christmas.

This letter was a request regarding the present state of knowledge about the periodocity of sun spot activity.

This letter discuss about equation of a hyperbola and their work.

This document originates from G.J.J. Harris, a consulting architect the Government of Madras engaged. It is addressed to the Madras and Kodaikanal Observatory director about the approval and submission of plans and estimates related to the construction of Kodaikanal Observatory buildings. Various aspects necessitated official sanction, encompassing the workshop for the mechanic, estimates for water supply in the director's residence, construction of a verandah for writers' quarters, provision of bookcases and furniture, landscaping of the grounds, provision of mats for the assistant's house, erection of additional outhouses for the first and second assistant quarters, and the construction of the observer's house at Periacolum, along with associated compensation. The communication underscores the comprehensive nature of the proposal, seeking the necessary approvals for diverse elements crucial to the successful realization of the Kodaikanal Observatory infrastructure.

The letter is from G. T. J. Harris, Consulting Architect to the Government of Madras, to the Director of Kodaikanal Observatory regarding a porcelain sink for photographic work that was intended for is in the India Office as such was not available in India. The cost is 5 pounds, whereas a sink made of porcelain enamel fit reclay would only be 1-15-0 pounds. Hence asking the opinion on which to be brought.

This item is a Letter from G.J.J Harris consulting architect to the Director of Kodaikanal Observatory regarding the plans and estimates amounting to Rs.5178 for works to complete the Kodaikanal Observatory.

This is a letter from F.W. Pirrie Lieut-colonel to The superintendent of Telegraph Madras regarding the longitude of the point which is used to estimate madras time.

The letter is from Fort St George Madras to John Evershed regarding acknowledgement of the returning the book. It acknowledges the return receipt of the book Oppolzer's Kanon der Finsternisse.

The letter is from Fort St. George Madras to John Evershed regarding the acknowledgement of the receipt of the book. It acknowledges the receipt of the book Oppolzer's Kanon der Finsternisse and also states that it will be returned within the specified time.

This letter was about the request by Judge on the information of magnetic variation in the years 1877-1878 and also what it is now in Madura district.