B^S. 22190* Nest of Siptomis 

 pat atonic a (No. 5392), General Roca, 

 Rio Negro, Argaitina. 



November 24, 1920» 



r 



22191* View of the Rxo 

 Negro. General Roca, Rio Negro, 

 Argentina. 



November 24, 1920. 



1428. Clump of saw grass, near 

 Gteneral Roca, Rio Negro, Argentina. 

 November 24, 1920. 



