U. S. NATIONAL MUSEUM 



BULLETIN 133 PL. 3 



PARTLY Dry Lagoon in Chaco, Bordered by Dense Growth of Sawgrass 



Resistencia, Chaco, July S, Ui2() 



Termite Hill Opened by Flickers (Colaptes campestroides) 



Las Palmas, Chaco, July 30, 1920 



