The letter is to the Superintending Engineer, 6th Circle, Trichinopoly, acknowledging the receipt of letter No. 3743 and saying that there will be a delay in returning the countersigned plans and estimates as it has to be submitted to the Director General of Indian Observatories for approval.

This letter is from Gilbert T. Walker to Charles Michie Smith, thanking him for the copy of Rowland's map and calling his attention to the error at the daily weather summary. He also informs that there is no objection to paying the photographer by piecework, and Lockyer needs the photo heliograms only to measure areas.

This letter was about the bad weather that hindering the work for many days. It also contains the new building for photoheliograph begun.

This is a letter from Charles. P. Butler, Ag: Director, Kodaikanal & Madras Observatories to Executive Engineer Madura regarding some construction needs at the Solar Physics Observatory, like a permanent building to hold the 4-inch photoheliograph, a glazed verandah for keeping the north-western side of the observatory dry, an open verandah for the Bookbinder's shed and quarters for the writer of the observatory, on which the details will be given later when the decision is finalised.