Eaton thanks Rotblat for his letter of 16 May, agreeing with the provisional programme changes and the list of participants, which was enclosed.

He writes that though the conference is set for 8-10 July, any scientists who wish to arrive a few days early are more than welcome to do so.

Eaton asks if there is anybody in the McGill faculty that would be useful to invite to the conference, as McGill has been incredibly helpful in previous meetings at Pugwash.