The letter is from John Evershed to The Director General of Observatories, Simla, informing that he agreed to put off special repairs to the roof at a more favorable time as the price of materials is high and asked to do minor repairs that were necessary.

The letter is from John Evershed to The Director General of Observatories, Simla, stating that expenditure amounting to Rs.2500/- on reroofing the spectroheliograph building may be incurred in the year 1917-18.

The letter was an enquiry with reference to the Photoheliograph which was received on loan from Greenwich Observatory, whether to return it or it may be completely dismantled and the parts used for other purposes in our research work.

This letter was reply to letter dated Oct. 29 about lenses. He was requesting 15-inch, 12-inch, 4-inch and a lens of about 7 ft. focus lenses to be send from Nizamaiah Observatory to Kodaikanal Road Station mentioning the purposes for which it requires. In addition the item has the telegram messages written by Evershed to Pocock and vice versa.

This letter contains information about testing of the 15 inch lens on stars etc and finding something wrong in color correction.

This letter is from John Evershed to Mr Bhaskaran about the instructions to pack the 15-inch lens in a large case. He also mentioned that he had put castor oil between the component lenses to keep them perfectly adjusted and saved about 8 percent of light otherwise lost by reflection.

The letter is from John Evershed to Messrs T. Cooke and Sons Ltd regarding a 12-inch photovisual lens. It states the condition after cleaning and testing.

The letter is from John Evershed to Messrs Adam Hilger regarding an order for three 60-degree flint prisms of the highest defining quality, two pieces of plane glass highest quality surfaces with one side polished, two pieces of plane parallel blue or green glass of good optical quality transmitting blue light but absorbing violet and ultra-violet. The letter mentions that the bill should be sent to the Director General of Observations in Simla, India.

The letter was an instruction for using the repaired lens and asking to send a complete telescope to compare and make the repairing process simple.

John Evershed, Director of Kodaikanal & Madras Observatory, wrote this letter to Gilbert T. Walker, assuming they might be getting the prism from Poona Observatory. He mentioned sending correspondence about the new micrometer and a specification. He devised another much simpler method of reducing moonlight comparable with 1st magnitude stars, which seems quite successful. He also proposed purchasing a Hartmann machine from private funds to save time and trouble.