ISSN Record 0301-4541

Preserved : 1920: 15(1-4), 1921: 16(1-4), 1921/1922: 17(2-4), 1921: 18(1), 1922: 19(2, 4), 1922/1923: 20(1-4), 1923: 21(2, 4), 1923/1924: 22(2-4), 1924: 23(2-4)

Preserved : 1925: 24(3), 1925: 25(2-3), 1926: 26(4), 1926: 27(3-4), 1927: 28(4), 1927: 29(2, 4)

Preserved : 1929: 30(4), 1929: 31(1-3)

Preserved : 15; 17 (2 to 4); 18 (1); 19 (2, 4); 20 (1 to 4); 21 (2, 4); 22 (2 to 4); 23 (2 to 4); 24 (3); 25 (2, 3); 26 (4); 27 (3, 4); 28; 29 (2, 4); 30; 31 (1 to 3); 32 (2, 4); 33 (2, 4); 34 (1, 2); 35 (1); 36 (2-3, 4); 37 (1 to 4); 38 (2-3, 4); 39 (1, 2, 3-4); 40 (2 to 4); 41 (1); 42 (3); 43 (1, 3, 4); 44 (sup1, 2 to 4); 45 (2, 4); 46 (1 to 3); 47 (2 to 4); 48 (1, 2); 49 (1 to 4); 50 (1 to 4); 51 (1 to 4); 52 (1 to 4); 53 (1, 2, 3-4); 54 (1 to 4); 55 (1 to 4); 56 (2, 4); 57 (3, 4); 58 (1 to 4); 59 (1 to 4); 60 (1 to 4); 61 (sup4, 1 to 4); 62 (1)

v.4 (1898)