The letter is to Sir Frank Dyson regarding a 16-inch coelostat that has been despatched to the agent for government consignments.

This letter was written to Simla from Kodaikanal confirming receiving all the instruments from Poona, including heavy mountings. Here, it's mentioned that for sanction, the total amount had been paid for cartage and storage and a small balance of the railway freight. One enclosed statement about expenditure regarding Poona instruments since 1st April is also included.

Letter to Shackleton to reorder a meniscus lens

This letter to Mr McDowell states Dr Pfund is now ruling gratings up to 4.5 in, and his diamond points do not last much longer than that. Hence, they are searching for others to rule out some big gratings from the beginning of next month. And this letter was copied to the Director General of Stores to do something needful about this problem, and they mentioned in their last reply letter due to some problem it was impossible to give delivery on time, but everything under their power was done, however, to furnish the grating and the first 6-inch plane ruled of first quality would be shipped.

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.

This letter was sent to John Evershed from the Director General of Observatories, attaching the sunshine records for Srinagar.

This letter was sent to John Evershed from the Director General of Observatories related to correction in readings of daily weather telegrams.

This letter was sent to John Evershed from Gilbert T. Walker, asking for an arrangement of a nephoscope for the extended observations started in Agra.

This letter was sent to John Evershed from Gilbert T. Walker to correct an error in the Nephoscope by observing a divided scalereflected in the glass.

This letter was sent to John Evershed from F. W. Dyson, asking to forward the solar photographs for some specific dates.