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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 1 (1 to 4); 2 (, 1 to 4); 3 (, 1 to 4); 4 (, 1 to 4); 5 (, 1 to 4); 6 (, 2 to 4); 7 (, 1 to 4); 8 (, 1 to 4); 9 (, 1 to 4); 10 (, 1 to 4); 11 (, 1 to 4); 12 (, 1 to 4); 13 (, 1 to 4); 14 (, 1 to 4); 15 (, 1 to 5); 16 (, 1 to 6); 17 (, 1 to 6); 18 (, 1 to 6); 19 (, 1 to 6); 20 (, 1 to 6); 21 (, 1 to 12); 22 (, 1 to 12); 23 (, 1 to 12); 24 (, 1 to 12); 25 (, 1 to 12); 26 (, 1 to 18); 27 (, 1 to 18); 28 (, 1 to 4, 9 to 18); 29 (, 1 to 18); 30 (, 1 to 18); 31 (, 1 to 24); 32 (, 2 to 24); 33 (, 1 to 20, 22 to 24); 34 (, 1 to 18, 20 to 24); 35 (, 1 to 24); 36 (, 1 to 24); 37 (, 1 to 24); 38 (, 1 to 24); 39 (, 1 to 24); 40 (, 1 to 24); 41 (, 1 to 26); 42 (, 1 to 26); 43 (, 1 to 26); 44 (, 1 to 26); 45 (, 1 to 26); 46 (, 1 to 18, 19-20, 21 to 26); 47 (, 1 to 5, 6-7, 8 to 19, 20-21, 22 to 28); 48 (, 1 to 10, 12 to 30); 49 (, 1 to 30); 50 (, 1 to 30); 51 (, 1 to 18, 20 to 30); 52 (, 1 to 30); 53 (, 1 to 25, 26-27, 28-30); 54 (, 1 to 30); 55 (, 1 to 30); 56 (, 1 to 30); 57 (, 1 to 30); 58 (, 1 to 30); 59 (, 1 to 20); 1967; 1968; 1969; 1970; 1971; 1972; 1973; 1974; 1975; 1976; 1977; 1978; 1979; 1980; 1981; 1982; 1983; 1984; 1985; 1986; 1987; 1988; 1989; 1990; 1991; 1992; 1993; 1994; 1995; 1996; 1997; 1998; 1999; 2000; 2001; 2002; 2003; 2004; 2005; 2006; 2007; 2008; 2009; 2010; 2011; 2012; 2013; 2014; 2015; 2016; 2017; 2018; 2019; 2020; 2021; 2022; 2023; 2024; 2025
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Internet Archive
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Preserved
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2025-08-08
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1 to 41
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CLOCKSS Archive
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In Progress
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2026-02-09
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1 to 41, 50 to 59
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LOCKSS Archive
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In Progress
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2026-02-09
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1 to 36, 59
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Portico
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Preserved
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2026-02-12
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Preserved : 1967: 1(1-4), 1968: 2(1-4), 1969: 3(1-4), 1970: 4(1-4), 1971: 5(1-4), 1972: 6(1-4), 1973: 7(1-4), 1974: 8(1-4), 1975: 9(1-4), 1976: 10(1-4), 1977: 11(1-4), 1978: 12(1-4), 1979: 13(1-4), 1980: 14(1-4), 1981: 15(1-6), 1982: 16(1-6), 1983: 17(1-6), 1984: 18(1-6), 1985: 19(1-6), 1986: 20(1-6), 1987: 21(1-12), 1988: 22(1-12), 1989: 23(1-12), 1990: 24(1-12), 1991: 25(1-12), 1992: 26(1-18), 1993: 27(1-18), 1994: 28(1-18), 1995: 29(1-18), 1996: 30(1-18), 1997: 31(1-24), 1998: 32(1-24), 1999: 33(1-24), 2000: 34(1-24), 2001: 35(1-24), 2002: 36(1-24), 2003: 37(1-24), 2004: 38(1-24), 2005: 39(1-24), 2006: 40(1-24), 2007: 41(1-26), 2008: 42(1-26), 2009: 43(1-26), 2010: 44(1-26), 2011: 45(1-26), 2012: 46(1-26), 2013: 47(1-28), 2014: 48(1-30), 2015: 49(1-30), 2016: 50(1-30), 2017: 51(1-30), 2018: 52(1-30), 2019: 53(1-30), 2020: 54(1-30), 2021: 55(1-4, 7-12, 14, 16, 18-30), 2022: 56(1-30), 2023: 57(1-30), 2024: 58(1-30), 2025: 59(1-6, 8-9, 11, 13-30), 2026: 60(1-4, 6)
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LOCKSS Archive
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Preserved
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2026-02-09
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37 to 58
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CLOCKSS Archive
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Preserved
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2026-02-09
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42 to 49
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Library of Congress
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Preserved
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2025-04-07
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44 (1 to 26); 45 (1 to 26); 46 (1 to 19-20, 21 to 26); 47 (1 to 6-7, 8 to 20-21, 22 to 28); 48 (1 to 30); 49 (1 to 30); 50 (1 to 30); 51 (1 to 30); 52 (2, 4, 12, 24 to 26, 29); 53 (1 to 26-27, 28-30); 54 (1 to 30); 55 (1 to 30); 56 (1 to 30); 57 (1 to 30); 58 (1 to 30); 59 (2)
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National Library of the Netherlands
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Preserved
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2024-12-15
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Preserved : 1 (1-4); 2 (1-4); 3 (1-4); 4 (1-4); 5 (1-4); 6 (2-4); 7 (1-4); 8 (1-4); 9 (1-4); 10 (1-4); 11 (1-4); 12 (1-4); 13 (1-4); 14 (1-4); 15 (1-5); 16 (1-6); 17 (1-6); 18 (1-6); 19 (1-6); 20 (1-6); 21 (1-12); 22 (1-12); 23 (1-12); 24 (1-12); 26 (1-18); 27 (1-18); 28 (1-4, 9-18); 29 (1-15, 17, 18); 30 (1-7, 9-18); 31 (1-24); 32 (2-18, 20-23); 33 (1-24); 34 (1-24); 35 (1-24); 36 (1-24); 37 (1-24); 38 (1-24); 39 (1-24); 40 (1-24); 41 (1-26); 42 (1-23); 43 (3-26); 44 (1-26); 45 (1-20, 26); 46 (1-18, 19-20, 21-26); 47 (1-5, 6-7, 8-19, 20-21, 22-28); 48 (1-30); 49 (1-17, 19-22, 24, 26-30); 50 (1-30); 51 (1-30); 52 (1-30); 53 (1-25, 26-27, 28-30); 89 (2)
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British Library
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Preserved
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2019-09-18
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Preserved : 47 (1), 48 (1 to 30), 49 (1 to 30), 50 (1 to 30), 51 (1 to 30), 52 (1 to 25)
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