1928
January January; 1 (1): 1 - 36	February February; 1 (2): 37 - 74	March March; 1 (3): 75 - 110
April April; 1 (4): 111 - 150	May May; 1 (5): 151 - 186	June June; 1 (6): 187 - 220
July July; 1 (7): 221 - 256	August August; 1 (8): 257 - 292	September September; 1 (9): 293 - 340
October October; 1 (10): 341 - 392	November November; 1 (11): 393 - 442	December December; 1 (12): 443 - 492