This is a letter to Mr Bhaskaran from John Ebvershed about the receipt of the 12-inch lens after figuring out the back surface of the cookie, which was tested and seemed entirely satisfactory.

A letter from the Director stating the change in focal length of the lens in question is not likely to be found seriously objectionable, if the lens proves satisfactory in other respects

This letter is about photo-visual lens and lens for spectroheliograph for observation in Kashmir

The letter contains quoted text of Gilbert T. Walker to Mr.Glacy at Hyderabad stating the usefulness of the lenses that were lend to Kodaikanal Observatory in 1915 for employment in Kashmir.

The letter was informing about Dr.Walker has written to the Minister of Finance asking about some spare lenses that they have with a view in borrowing them for use in Kasmir. It informs Evershed the type of lens that could be borrowed till the time.

This Letter is from the Director of Kodaikanal and Madras Observatories to the Director General of Stores regrading the details of the lens mentioned in Annual indent

This letter was about shifting the Lallemand cell to Kodaikanal. He left a separate note to Dr.Sinvhal also in this matter. Dr.Bappu explained its origin and its journey from Paris to Nainital.

The letter is to Walker referring to D.O. 5934 regarding dark glasses. The letter states that he has never seen the eye-piece box as the wedge was satisfactory.

The letter is from T. Cooke and Sons Ltd to John Evershed regarding a photo-visual lens. The photo-visual objective must not be correctly connected for spherical aberration. If the lens is returned and the abovementioned issue is there, they will fix it and pay for the carriage both ways.

The letter is from Adam Hilger Ltd to John Evershed, Director of Solar Physics Observatory Kodaikanal. It replies that the three 60° flint prisms are in stock but unfinished. Also, the two-plane parallel glass and the pair of green glass will be sent together to absorb the violet and ultra-violet rays. It also discusses the lack of immediate possibility for finishing the 6" diameter object glass.