Program: HathiTrust Digital Library
- Publisher: [Observatory?]
- Print ISSN:
- Electronic ISSN:
- OCLC Number: 12844995
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
Materials | Archive Action | Date of Action | Program | Status/Note |
---|---|---|---|---|
2nd 1914-1915; 4th 1916-1917; 5th 1917-1918; 7th 1919-1920; 8th 1920-1921; 10th 1922-1923; 11th 1923-1924; 12th 1924-1925; 13th 1925-1926; 14th 1926-1927; 15th 1927-1928; 16th 1928-1929; 17th 1929; 18th 1929-1930; 19th 1930-1931; 20th 1931-1932; 21st 1932-1933; 22nd 1933-1934; 23rd 1934-1935; 24th 1935-1936; 27th 1938-1939
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committed to retain | 2023-01-01 | HTDL |
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