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.
Evershed, JohnMadras (India)
815 Archival description results for Madras (India)
This letter contains information about testing of the 15 inch lens on stars etc and finding something wrong in color correction.
Evershed, JohnThis letter was a discussion regarding displacements of the solar lines towards red are distinctly unfavourable to Einsteins theory.
Evershed, JohnThis 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.
Strange, W. L.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.
Evershed, JohnThis letter was an acknowledgement for sending pump and bell jar. Evershed mentioned about getting the beautiful series of plates of the Spectrum of the iron arc in air and the centre of Sun's disk. He has written about reproduction of prominence photos the sample of work done by the Roorkee Coy., is suitable the screen used being very fine.
Evershed, JohnThis letter was about return a copy of the annual report as desired and providing errors of ruling in the best gratings.
Evershed, JohnThe letter was regarding the Sun charts prints that are not satisfactory as the negatives are imperfect. Therefore sending of original charts on cloth which are 26 inches in diameter are proposed by Evershed.
Evershed, JohnThe letter was a confirmation of forwading a box containing 15 Sun charts which have been modified with the details of charts structure and required numbers of prints for each charts annually.
Evershed, JohnThis letter was an acknowledgement for the comet plate and dicussing to compare with the existing plates.
Evershed, John