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

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.

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

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.

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 is about photo-visual lens and lens for spectroheliograph for observation 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.