This is a letter from Bhaskaran to John Evershed regarding a 12-inch lens, which had been returned and is performing satisfactorily.

This letter was about arriving of grating and considered not perfect but overall, it's good.

This a letter of enquiry regarding sending of lenses located at Nizamiah Observatory could be sent to Evershed. It also encloses a copy of Pocock's letter where description about the lenses are mentioned.

This letter was sent to John Evershed regarding the estimates for regrinding and figuring the concave back surface of the 12-inch Hyderabad lens to Mr Hydari, Hyderabad (Deccan). The cost bill should be sent directly to the Director, Nizamiah Observatory, Hyderabad, for payment.

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.

This letter is from Gilbert T. Walker to the Director of Solar Physics Observatory, Kodaikanal regarding forward of the glass object via post to the Director General of Stores, London enclosing the a copy of a letter

This letter is from Gilbert T. Walker to the Secretary to the Government of India asking for assistance from the Government in securing the loan for the Kodaikanal Observatory of a prism, which was in charge of the Joint Permanent Eclipse committee of the Royal Society and the Royal Astronomical Society.

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.

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.

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.