Addition to Lüders' letter of 6 Feb, about the authorship of the TPC-theorem.

Lüders makes some comments on Pauli's letter of 18 April 1957 : 1)On the TCP-problem. 2)On Bell's paper. 3)On Klein's theorem. He writes more about his and Zumino's calculations on strong interactions.

Gårding writes on points in his enclosed thesis.