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(No Negative). Crossing a Riacho. Las Palmas, Chaco, Argentina. July 20, 1920.

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B.S. 21992. Ferry across deep riacho. Las Palmas, Chaco, Argentina. July 30, 1920.

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B.S. 21993. A flycatcher [[underlined]] Machetornis rixosa [[/underlined]] perched on a cow. Las Palmas, Chaco, Argentina. August 1, 1920.