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B*S. 22212* Small grebe, 

 Colymbus chilensis * Genaral Roca, 

 R£o Negro, Argentina* 



December 3, 1920* 



r 



B*S* 22213* Dry rolling 

 upland. Zapala, Neuquen, 

 Argentina* 



December 7, 1920. 



T- '- ■ -'t^v- 



r 



lii.33» Rolling country on up- 

 land, ilndes in the distance. Near 

 Zapala, Ileuquen^ Argentina. 



Deceniber 7, 1920. 



