Program: HathiTrust Digital Library

  • Publisher: The Observatory
  • Print ISSN:
  • Electronic ISSN:
  • OCLC Number: 10867748
  • Validation: None
  • Retention: permanent
  • Institution: HathiTrust
  • Facility:
  • OCLC Symbol: HATHI
  • Holdings Format: Print
Materials Archive Action Date of Action Program Status/Note
1878-85; 1887-92; 1893/1894; 1894-97; 1898-1900, 1902, 1904; 1888-1920; 1921-31
committed to retain 2023-01-01 HTDL