The letter was a reply to A. S. Eddington acknowledging his work on redshift and his proposal to incorporate factor of 2 in the process. Further he mentioned about Thomas Royds results from the eclipse spectra.

The letter disusses on John Evershed's paper which was written 18 moths ago saying that he gone through the paper and a good deal about the factor 2 and the red-shift. A. S. Eddington said that he now more or less concerned that Einstein's theory is wrong on this point, and the true theoritical red-shift is twice his value as you find. Further he mentioned that the Thomas Royds confused him on the desirable value as the eclipse.