Rotblat encloses more invitation letters to the Quebec conference (not present).

"I should like to suggest with some diffidence that perhaps you would care to write to Mr. Eaton to tell him that you are unable to come and to thank him for making the conference possible. I know that he would greatly appreciate receiving a letter directly from you."

A digital print of the carbon of this letter is available in Box 16.79, RA3 1816e, document no. 21.