Pauli makes further remarks on the problems of Elsasser's book and on his letter of the 15th September 1958.

Full text is: "Disagree with roof formalism. Good otherwise. Have sent letter."

Heisenberg writes of the re-writing of the manuscript of the pre print: on the eigenvalue problem and on the table of the quantum numbers.

Heisenberg writes of the results of his calculations about eigenvalues for fermions and baryons. He replies to Pauli's letter of 10 February.

Pauli refers to the discussion between Symanzik and Källén.

Full text is :"Reached similar conclusions as you. Wait with manuscript until matter clarified. Letter from New York follows.Pauli"