1949
January January; 57 (1): 1 - 136	February February; 57 (2): 137 - 268	March March; 57 (3): 269 - 388
April April; 57 (4): 391 - 476	May May; 57 (5): 477 - 574	June June; 57 (6): 575 - 659
July July; 58 (1): 1 - 116	August August; 58 (2): 117 - 270	September September; 58 (3): 271 - 408
October October; 58 (4): 409 - 548	November November; 58 (5): 549 - 715	December December; 58 (6): 717 - 824