HathiTrust
1918-1929
Preserved
2025-11-01
v.2 (1919); v.3 (1920); v.11 1928; v.6 1923; v.10 1927; v.7 1924; v.12 1929; v.5 1922; v.4 1921; v.2 1919; v.1 1918; v.3 1920; v.9 1926; v.8 1925; v.1 (1918); v.2 (1919); v.5 (1922); v.3 (1920); v.4 (1921); v.6 (1923); v.7 (1924); v.8 (1925); v.9 (1926); v.1 1918; v.2 1919; v.3 1920; v.6 1923; v.7 1924; v.8 1925; v.9 1926; v.10 1927; v.11 1928; v.12 1929; v.4 1921; v.5 1922
Scholars Portal
1918-2026
Preserved
2026-03-19
Preserved : 1 (1 to 12); 2 (1 to 12); 3 (1 to 12); 4 (1 to 12); 5 (1 to 12); 6 (1 to 12); 7 (1 to 12); 8 (1 to 12); 9 (1 to 12); 10 (1 to 12); 11 (1 to 12); 12 (1 to 12); 13 (1 to 12); 14 (1 to 12); 15 (1 to 12); 16 (1, 2, 4, 6 to 12); 17 (1-12); 18; 19; 20; 21 (2 to 11); 22 (1-12); 23 (2 to 12); 24 (1 to 12); 25 (1 to 15); 26 (1 to 12); 27 (1 to 12); 28 (1 to 12); 29 (1 to 12); 30 (1 to 12); 31 (1 to 12); 32 (s1, 1 to 12); 33 (1 to 12); 34 (1 to 12); 35 (1 to 12); 36 (1 to 12); 37 (1 to 12); 38 (1 to 12); 39 (1 to 12); 40 (1 to 12); 41 (1 to 12); 42 (1 to 12); 43 (1 to 12); 44 (1 to 12); 45 (1 to 12); 46 (1 to 12); 47 (1 to 12); 48 (1 to 12); 49 (1 to 12); 50 (1 to 12); 51 (1 to 12); 52 (1 to 12); 53 (1 to 12); 54 (1 to 12); 55 (1 to 12); 56 (1 to 12); 57 (1 to 12); 58 (1-2, 3-4, 5-6, 7-8, 9-10, 11-12); 59 (1-2, 3-4, 5-6, 7-8, 9-10, 11-12); 60 (1-2, 3-4, 5-6, 7-8, 9-10, 11-12); 61 (1-2, 3-4, 5-6, 7-8, 9-10, 11-12); 62 (1-2, 3-4, 5-6, 7-8, 9-10, 11-12); 63 (1-2, 3-4, 5-6, 7-8, 9-10, 11-12); 64 (1 to 12); 65 (1 to 12); 66 (1 to 12); 67 (1 to 12); 68 (1 to 12); 69 (1 to 12); 70 (1 to 12); 71 (1 to 12); 72 (1 to 12); 73 (1 to 12); 74 (1 to 12); 75 (1 to 12); 76 (1 to 12); 77 (1 to 12); 78 (1 to 12); 79 (1 to 12); 80 (1 to 12); 81 (1 to 12); 82 (1 to 12); 83 (1 to 12); 84 (1 to 12); 85 (1 to 12); 86 (1 to 12); 87 (1 to 12); 88 (1 to 7); 91 (9); 95 (4 to 9, 11, 12); 96 (1 to 12); 97 (1 to 12); 98 (1 to 12); 99 (1 to 12); 100 (1 to 12); 101 (1 to 12); 102 (1, 3 to 12); 103 (1 to 12); 104 (1 to 12); 105 (1 to 12); 106 (1 to 12); 107 (1 to 12); 108 (1 to 12); 109 (1, 2)
Internet Archive
1918-2013
Preserved
2025-08-08
1 to 96
Portico
1918-1938
Preserved
2026-04-09
Preserved : 1918: 1(1-12), 1919: 2(1-12), 1920: 3(1-12), 1921: 4(1-12), 1922: 5(1-12), 1923/1927: 6(1-12), 1924: 7(1-12), 1925: 8(1-12), 1926: 9(1-12), 1927: 10(1-12), 1928: 11(1-12), 1929: 12(1-12), 1930: 13(1-12), 1931: 14(1-12), 1932: 15(1-12), 1933: 16(1-12, 2, 4, 6-12), 1934: 17(1-12), 1935: 18(1-12), 1936: 19(1-12), 1937: 20(1-12), 1938: 21(1-11)
Portico
1939-2026
Preserved
2026-04-09
Preserved : 1939: 22(1-12), 1940: 23(1-12), 1941: 24(1-12), 1942: 25(1-15), 1943: 26(1-12), 1944: 27(1-12), 1945: 28(1-12), 1946: 29(1-12), 1947: 30(1-12), 1948: 31(1-12), 1949: 32(1-12), 1950: 33(1-12), 1951: 34(1-12), 1952: 35(1-12), 1953: 36(1-12), 1954: 37(1-12), 1955: 38(1-12), 1956: 39(1-12), 1957: 40(1-12), 1958: 41(1-12), 1959: 42(1-12), 1960: 43(1-12), 1961: 44(1-12), 1962: 45(1-12), 1963: 46(1-12), 1964: 47(1-12), 1965: 48(1-12), 1966: 49(1-12), 1967: 50(1-12), 1968: 51(1-12), 1969: 52(1-12), 1970: 53(1-12), 1971: 54(1-12), 1972: 55(1-12), 1973: 56(1-12), 1974: 57(1-12), 1975: 58(1-12), 1976: 59(1-12), 1977: 60(1-12), 1978: 61(1-12), 1979: 62(1-12), 1980: 63(1-12), 1981: 64(1-12), 1982: 65(1-12), 1983: 66(1-12), 1984: 67(1-12), 1985: 68(1-12), 1986: 69(1-12), 1987: 70(1-12), 1988: 71(1-12), 1989: 72(1-12), 1990: 73(1-12), 1991: 74(1-12), 1992: 75(1-12), 1993: 76(1-12), 1994: 77(1-12), 1995: 78(1-12), 1996: 79(1-12), 1997: 80(1-12), 1998: 81(1-12), 1999: 82(1-12), 2000: 83(1-12), 2001: 84(1-12), 2002: 85(1-12), 2003: 86(1-12), 2004: 87(1-12), 2005: 88(1-12), 2006: 89(1-12), 2007: 90(1-12), 2008: 91(1-12), 2009: 92(1-12), 2010: 93(1-12), 2011: 94(1-12), 2012: 95(1-12), 2013: 96(1-12), 2014: 97(1-12), 2015: 98(1-12), 2016: 99(1-12), 2017: 100(1-12), 2018: 101(1-12), 2019: 102(1-12), 2020: 103(1-12), 2021: 104(1-12), 2022: 105(1-12), 2023: 106(1-12), 2024: 107(1-12), 2025: 108(1-12), 2026: 109(1-3)
Portico
1986-1988
Preserved
2026-04-09
Preserved : 1986: 1(2-4), 1987: 2(1-2, 3, A, 3, B, 4), 1988: 3(1-6)
CLOCKSS Archive
1925-2026
Preserved
2026-04-06
1, 8, 36, 37, 42, 60, 74 to 109
National Digital Preservation Program, China
1997-2025
Preserved
2025-10-23
Preserved : 1 (1 to 9, 11, 12); 8 (1 to 9, 11, 12); 9 (1 to 9, 11, 12); 11 (1 to 9, 11, 12); 12 (1 to 9, 11, 12); 13 (1 to 9, 11, 12); 14 (1 to 9, 11, 12); 15 (1 to 9, 11, 12); 16 (1 to 9, 11, 12); 17 (1 to 9, 11, 12); 18 (1 to 9, 11); 81 (1 to 9, 11, 12); 82 (1 to 9, 11, 12); 83 (1 to 9, 11, 12); 84 (1 to 9, 11, 12); 85 (1 to 9, 11, 12); 86 (1 to 9, 11, 12); 87 (1 to 9, 11, 12); 88 (1 to 9, 11, 12); 89 (1 to 9, 11, 12); 91 (1 to 9, 11, 12); 92 (, 1 to 9, 11, 12); 93 (1 to 9, 11, 12); 94 (, 1 to 9, 11, 12); 95 (1 to 9, 11, 12); 96 (1 to 9, 11, 12); 97 (1 to 9, 11, 12); 98 (1 to 9, 11, 12); 99 (1 to 9, 11, 12)
National Digital Preservation Program, China
1997-2025
Preserved
2025-12-04
Preserved : 1 (1 to 9, 11, 12); 8 (1 to 9, 11, 12); 9 (1 to 9, 11, 12); 11 (1 to 9, 11, 12); 12 (1 to 9, 11, 12); 13 (1 to 9, 11, 12); 14 (1 to 9, 11, 12); 15 (1 to 9, 11, 12); 16 (1 to 9, 11, 12); 17 (1 to 9, 11, 12); 18 (1 to 9, 11, 12); 81 (1 to 9, 11, 12); 82 (1 to 9, 11, 12); 83 (1 to 9, 11, 12); 84 (1 to 9, 11, 12); 85 (1 to 9, 11, 12); 86 (1 to 9, 11, 12); 87 (1 to 9, 11, 12); 88 (1 to 9, 11, 12); 89 (1 to 9, 11, 12); 91 (1 to 9, 11, 12); 92 (, 1 to 9, 11, 12); 93 (1 to 9, 11, 12); 94 (, 1 to 9, 11, 12); 95 (1 to 9, 11, 12); 96 (1 to 9, 11, 12); 97 (1 to 9, 11, 12); 98 (1 to 9, 11, 12); 99 (1 to 9, 11, 12)
National Library of the Netherlands
2006-2007
Preserved
2024-12-15
Preserved : 89 (1-6, 8-12); 90 (1-12)