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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 14 (2 to 4); 15 (, 1 to 4); 16 (, 1 to 6); 17 (, 1 to 4); 18 (, 1 to 4); 19 (, 1 to 4); 20 (, 1 to 4); 21 (, 1 to 5); 22 (, 1 to 7); 23 (, 1 to 7); 24 (, 1 to 7); 25 (, 1 to 7); 26 (, 1, 2, 3-4, 5); 27 (, 1 to 4); 28 (, 1 to 5); 29 (, 1 to 5); 30 (, 1 to 5); 31 (, 1 to 5); 32 (, 1 to 3, 5); 33 (, 1 to 5); 34 (, 1 to 5); 35 (, 1 to 5); 36 (, 1 to 5); 37 (, 1 to 5); 38 (, 1 to 5); 39 (, 1 to 5); 40 (, 1 to 5); 41 (, 1, 3 to 5); 42 (, 1 to 5); 43 (, 1 to 5); 44 (, 1 to 5); 45 (, 1 to 5); 46 (, 1 to 5); 47 (, 1 to 5); 48 (, 1 to 5); 49 (, 1 to 5); 50 (, 1 to 5); 51 (, 1 to 5); 52 (, 1 to 5); 53 (, 1 to 5); 54 (, 1 to 4); 55 (, 1 to 4); 56 (, 1 to 4); 57 (, 1 to 4); 58 (, 1 to 4); 59 (, 1 to 4); 60 (, 1 to 4); 61 (, 1 to 4); 62 (, 1 to 4); 63 (, 1 to 5); 64 (, 1 to 5); 65 (, 1 to 5); 66 (, 1 to 5); 67 (, 1 to 5); 68 (, 1 to 5); 69 (, 1 to 5); 70 (, 1 to 5); 71 (, 1 to 5); 72 (, 1 to 5); 73 (, 1 to 6); 74 (, 1 to 6); 75 (, 1 to 6); 76 (, 1 to 6); 77 (, 1 to 6); 78 (, 1 to 6); 79 (, 1 to 6); 81 (, 1 to 6); 82 (, 1 to 6); 83 (, 1 to 6); 84 (, 1 to 6); 85 (, 1 to 6); 86 (, 1 to 6); 87 (, 1 to 6); 88 (, 1 to 6); 89 (, 1 to 6); 90 (, 1 to 6); 91 (, 1 to 6); 92 (, 1 to 6); 93 (, 1 to 6); 94 (, 1 to 6); 95 (, 1 to 6); 96 (, 1 to 6); 97 (, 1 to 6); 98 (, 1 to 6); 99 (, 1 to 6); 100 (, 1 to 6); 101 (, 1 to 6); 102 (, 1 to 6); 103 (, 1 to 6); 104 (, 1 to 6); 105 (, 1 to 6); 106 (, 1 to 6); 107 (, 1 to 6); 108 (, 1 to 6); 109 (, 1 to 4); 1930; 1931; 1932; 1933; 1934; 1935; 1936; 1937; 1938; 1939; 1940; 1941; 1942; 1943; 1944; 1945; 1946; 1947; 1948; 1949; 1950; 1951; 1952; 1953; 1954; 1955; 1956; 1957; 1958; 1959; 1960; 1961; 1962; 1963; 1964; 1965; 1966; 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; 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 98
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HathiTrust
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Preserved
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2025-11-01
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v.4(1919-1920); v.1-2(1916-1918); v.3-4 1918-20; v.5-6 1920-22
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Portico
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Preserved
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2026-02-12
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Preserved : 1930: 14(2-4), 1930/1931: 15(1-4), 1931/1932: 16(1-6), 1933: 17(1-4), 1934: 18(1-4), 1935: 19(1-4), 1936: 20(1-4), 1937: 21(1-5), 1938: 22(1-7), 1939: 23(1-7), 1940: 24(1-7), 1941: 25(1-7), 1942: 26(1-5), 1943: 27(1-4), 1944: 28(1-5), 1945: 29(1-5), 1946: 30(1-5), 1947: 31(1-5), 1948: 32(1-3, 5), 1949: 33(1-5), 1950: 34(1-5), 1951: 35(1-5), 1952: 36(1-5), 1953: 37(1-5), 1954: 38(1-5), 1955: 39(1-5), 1956: 40(1-5), 1957: 41(1, 3-5), 1958: 42(1-5), 1959: 43(1-5), 1960: 44(1-5), 1961: 45(1-5), 1962: 46(1-5), 1963: 47(1-5), 1964: 48(1-5), 1965: 49(1-5), 1966: 50(1-5), 1967: 51(1-5), 1968: 52(1-5), 1969: 53(1-5), 1970: 54(1-4), 1971: 55(1-4), 1972: 56(1-4), 1973: 57(1-4), 1974: 58(1-4), 1975: 59(1-4), 1976: 60(1-4), 1977: 61(1-4), 1978: 62(1-4), 1979: 63(1-5), 1980: 64(1-5), 1981: 65(1-5), 1982: 66(1-5), 1983: 67(1-5), 1984: 68(1-5), 1985: 69(1-5), 1986: 70(1-5), 1987: 71(1-5), 1988: 72(1-5), 1989: 73(1-6), 1990: 74(1-6), 1991: 75(1-6), 1992: 76(1-6), 1993: 77(1-6), 1994: 78(1-6), 1995: 79(1-6), 1996: 80(1-6), 1997: 81(1-6), 1998: 82(1-6), 1999: 83(1-6), 2000: 84(1-6), 2001: 85(1-6), 2002: 86(1-6), 2003: 87(1-6), 2004: 88(1, S 1, 2-6), 2005: 89(1-6), 2006: 90(1-6), 2007: 91(1-6), 2008: 92(1-6), 2009: 93(1-6), 2010: 94(1-6), 2011: 95(1-6), 2012: 96(1-6), 2013: 97(1-6), 2014: 98(1-6), 2015: 99(1-6), 2016: 100(1-6), 2017: 101(1-6), 2018: 102(1-6), 2019: 103(1-6), 2020: 104(1-6), 2021: 105(1-6), 2022: 106(1-6), 2023: 107(1-6), 2024: 108(1-6), 2025: 109(1-6), 2026: 110(1-2)
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Technische Informationsbibliothek
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Preserved
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2026-01-13
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vol.100:1-6;vol.101:1-6;vol.102:1-6;vol.103:1-6;vol.104:1-6;vol.105:1;vol.81:1-6;vol.82:1-6;vol.83:1-6;vol.84:1-6;vol.85:1-6;vol.86:1-6;vol.87:1-6;vol.88:1-6,S1;vol.89:1-6;vol.90:1-6;vol.91:1-6;vol.92:1-6;vol.93:1-6;vol.94:1-6;vol.95:1-6;vol.96:1-6;vol.97:1-6;vol.98:1-6;vol.99:1-6
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National Digital Preservation Program, China
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Preserved
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2025-10-23
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Preserved : 1 (1 to 6); 8 (1 to 6); 9 (1 to 6); 11 (1 to 6); 12 (1 to 6); 13 (1 to 6); 14 (1 to 6); 15 (1 to 6); 16 (1 to 6); 17 (1 to 6); 18 (1 to 6); 19 (1 to 5); 81 (1 to 6); 82 (1 to 6); 83 (1 to 6); 84 (1 to 6); 85 (1 to 6); 86 (1 to 6); 87 (1 to 6); 88 (S1, 1 to 6); 89 (1 to 6); 91 (1 to 6); 92 (1 to 6); 93 (1 to 6); 94 (1 to 6); 95 (1 to 6); 96 (1 to 6); 97 (1 to 6); 98 (1 to 6); 99 (1 to 6)
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National Digital Preservation Program, China
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Preserved
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2025-12-04
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Preserved : 1 (1 to 6); 8 (1 to 6); 9 (1 to 6); 11 (1 to 6); 12 (1 to 6); 13 (1 to 6); 14 (1 to 6); 15 (1 to 6); 16 (1 to 6); 17 (1 to 6); 18 (1 to 6); 19 (1 to 6); 81 (1 to 6); 82 (1 to 6); 83 (1 to 6); 84 (1 to 6); 85 (1 to 6); 86 (1 to 6); 87 (1 to 6); 88 (S1, 1 to 6); 89 (1 to 6); 91 (1 to 6); 92 (1 to 6); 93 (1 to 6); 94 (1 to 6); 95 (1 to 6); 96 (1 to 6); 97 (1 to 6); 98 (1 to 6); 99 (1 to 6)
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