Filtering by: Series Series 6: Glass Negatives Remove constraint Series: Series 6: Glass Negatives People Campbell, William Wallace, 1862-1938 Remove constraint People: Campbell, William Wallace, 1862-1938 People Lick Observatory Remove constraint People: Lick Observatory Place Lick Observatory Remove constraint Place: Lick Observatory Topic Astronomical instruments Remove constraint Topic: Astronomical instruments Topic Portraits Remove constraint Topic: Portraits