1940
January January; 39 (1): 3 - v.4	February February; 39 (2): 113 - 228	March March; 39 (3): 229 - 347
April April; 39 (4): 349 - 473	May May; 39 (5): 475 - 632	June June; 39 (6): 633 - 758
July July; 40 (1): 1 - 169	August August; 40 (2): 171 - 337	September September; 40 (3): 339 - 466
October October; 40 (4): 467 - 600	November November; 40 (5): 601 - 745	December December; 40 (6): 755 - 753