Jidag 1, 1950. Dr. Raymond Latarjet, Laboratoire Pasteur, Institut du Radiun, 26, Rue d'Ulm, Paris 5, France. Dear Latarjet: I am quite sure that we can work out the arrangements for you to visit here June 10, and in particular a reimbursement of your travel expense from Cleveland. However, as the details are not yet worked out, it would be best if you could call from C.S.H. I am at extension 4217; the University phone is Madison, 5-3311. You would do best to call person-to-person. I shall be looking forward to seeing you. Sincerely, Joshua Lederberg