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[[image]] B.S. 22212. Small grebe, [[underlined]] Colymbus chilensis. [[/underlined]] General Roca, Río Negro, Argentina. December 3, 1920. [[image]] B.S. 22213. Dry rolling upland. Zapala, Neuquén, Argentina. December 7, 1920. [[image]] 1433. Rolling country on upland, Andes in distance. Near Zapala, Neuquén, Argentina. December 7, 1920.