Unite et methode dans la science J. Clay Algemeen Gedeelte General Part Partie Generale Pages: 486 - 498
G. Mannoury's reply to the address delivered by L. E. J. Brouwer on the occasion of his honorary doctorate on September 16th, 1946 Dutch Section Pages: 514 - 515
Commemoration of the graduation day of Prof. Dr.L. E. J. Brouwer, February 19, 1907 Dutch Section Pages: 516 - 518
The relativistic standpoint with regard to the foundation of mathematics Dutch Section Pages: 519 - 521
Logical and psychological aspects in the consideration of language Evert W. Beth Dutch Section Pages: 542 - 544