1. Field notebook of Arthur A. Allen in Cartago, Novita and Cali (Columbia). Collection: Images from the Rare Book and Manuscript Collections Location: Columbia Date: 1911-1912 Format: Image Creator: Allen, Arthur A. (Arthur Augustus), 1885-1964
2. Olive backed thrush music graph, page 114. Collection: Images from the Rare Book and Manuscript Collections Date: 1920-05-30 Format: Image Creator: Clarence Stone
3. Olive backed thrush music graph, page 119. Collection: Images from the Rare Book and Manuscript Collections Date: 1920-06-06 Format: Image Creator: Clarence Stone
