Telescope Data Center Harvard Plate Collection Harvard-Smithsonian Center for Astrophysics
Harvard Observatory Plate Stacks
RH Series Observing Logs
Volume 7
15 April - 4 November 1931

Volume 01: 1928-01-01 - 1928-08-13 (00001-00440)
Volume 02: 1928-08-15 - 1929-02-18 (00441-01019)
Volume 03: 1929-02-20 - 1930-09-11 (01020-01478)
Volume 04: 1929-09-12 - 1930-03-27 (01479-02026)
Volume 05: 1930-03-28 - 1930-09-19 (02027-02459)
Volume 06: 1930-09-22 - 1931-04-14 (02460-03060)
Volume 07: 1931-04-15 - 1931-11-04 (03061-03576)
Volume 08: 1931-11-05 - 1932-05-05 (03577-04157)
Volume 09: 1932-05-08 - 1932-09-23 (04158-04848)
Volume 10: 1932-09-24 - 1933-05-11 (04849-05097)
Volume 11: 1933-05-14 - 1934-07-22 (05098-06116)
Volume 12: 1934-08-05 - 1937-03-23 (06117-07606)
Volume 13: 1937-03-29 - 1939-07-12 (07607-08967)
Volume 14: 1939-07-13 - 1941-06-20 (08968-10380)
Volume 15: 1941-06-21 - 1943-07-02 (10381-11566)
Volume 16: 1943-07-06 - 1944-02-25 (11567-12245)
Volume 17: 1944-01-30 - 1945-11-05 (12242-13498)
Volume 18: 1945-11-06 - 1948-09-05 (13499-14720)
Volume 19: 1948-09-07 - 1952-04-29 (14721-15834)
Volume 20: 1952-07-13 - 1952-11-28 (15835-15906)

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1931

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