Address delivered at the Conference on the unity of knowledge, arranged in connection with the Bicentennial of Columbia University, at Arden House, New York, October 28, 1954.

A former school friend of Pauli writes some recollections.

C.-S. Wu writes to F. Pauli about the latest letter she received from W. Pauli. Enclosed she had sent a copy of this last letter (Bi 1/134).

C.-S. Wu writes to F. Pauli about a photograph of W. Pauli and about neutrino.