Harvard-Smithsonian Center for Astrophysics Harvard Observatory Plate Stacks RB Series Observing Logs

Volume 01: 1928-10-31 - 1931-05-17 (00001-01740) (2 screens)

Volume 02: 1931-05-20 - 1931-12-23 (01741-02377) (2 screens)

Volume 03: 1932-01-03 - 1932-11-29 (02378-03718) (2 screens)

Volume 04: 1932-12-01 - 1934-02-25 (03719-04883) (2 screens)

Volume 05: 1934-02-25 - 1935-05-02 (04884-06140) (2 screens)

Volume 06: 1935-05-04 - 1937-07-29 (06141-07499) (2 screens)

Volume 07: 1937-07-30 - 1939-11-19 (07500-09253) (2 screens)

Volume 08: 1939-11-23 - 1941-11-13 (09254-11163) (2 screens)

Volume 09: 1941-11-14 - 1944-07-02 (11164-13002) (2 screens)

Volume 10: 1944-07-09 - 1946-08-28 (13003-14739) (2 screens)

Volume 11: 1946-08-29 - 1949-06-12 (14740-16312) (2 screens)