The letter is from John Evershed to the Director-General of Observatories, Simla, requesting the Government to sanction the estimate of Rs.1075 for a new pump and Rs. 340 for the alteration of the current pump house. He also stated that as the current pump is not working, the observatory building depends on rainwater, and during dry weather, it has to be carted from a distance; hence, at his request, the estimates were provided by the electrical engineer.

This letter from J. Evershed to the Director-General of Stores regarding the 30-degree prism ordered for Kodaikanal M6145 Hilger, which should not be sent out for trial as judged by Mr Shackleton, the prism does not meet the requirements of the specification and should be rejected.

This is a letter from John Evershed, the Director of Kodaikanal and Madras Observatories, to the District Magistrate Nellore enclosing the sketch of the locality where the sound is the Loudest. It also states that the superintendent geological survey of India informed that similar sounds are heard in Ongole, and they are mostly due to temperature effects causing fractures in the massive quartz magnetite rock of which the country is composed.

The letter is from John Evershed to the electrical inspector enquiring about his visit to inspect electrical installations and asking him to suggest a suitable pump that can deliver about 500 gallons per hour through a 2-inch pipe as the current pump is not working correctly.

This is a letter from the director of Kodaikanal and Madras Observatories to the electric inspector to the government of madura stating that the inspection report has been considered and actions has been taken.

The letter is from John Evershed, the Director of Kodaikanal and Madras Observatories, to the Executive Engineer Madura requesting for arranging for the painting of the front porch and woodwork of the office building and spectroheliograph building with chocolate paint before the dry weather ends.

This is a letter from the director of Kodaikanal and Madras Observatories to the executive engineer madura special division. It states that a small shed is required at a distance of about 600 feet from the engine house for protecting the pump that supplies water to the generating plant and the observatory.

This item is a letter from John Evershed, Director of Kodaikanal and Madras Observatories, to Executive Engineer Madura Division, honouring 7 estimates duly countersigned and informing that other estimates are being sent to the superintending engineer.

The letter is from John Evershed to The Executive Engineer, Madura Division, with reference to letter No. 372E. As the price of materials is high, he agrees that the special repairs can be put off to a more suitable time. But also state the leakage problem. The letter of 17-08-1917 states the urgency for the repair as the leakage is very bad.

The letter is from John Evershed to the Officer in Charge Dehradun, informing them of an issue with the earth inductor. It also states that repairing it at the Calcutta mathematical instrument office is better.