B.S. 22011. Typical view of 
Chaco, across an open savanna 
toward forest. Riacho Pilaga, 
Formosa, Argentina, 
August 8, 1920. 
B.S. 22012. Border of forest. 
Riacho Pilaga, Formosa, Argentina. 
August 8, 1920. 
1372. Looking across a 
savanna to the border of forest. 
Riacho Pilaga, Kilometer 182, 
Formosa, Argentina. 
August 8, 1920. 
