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PHOTOGRAPHS BY ALEXANDER WETMORE 9t 
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o BS 21933.... .Lagoon covered at shore vdth floating vegetation. -££k*retr). La Sabana, 
Chaco, Argentina, July 5, 1920. 
o BS 21935.Quebracho logs cut for the extraction of tannin. Southern Chaco, 
Argentina, July 5, 1920. 
o BS 21936.Typical vievr in deforested section of the Chaco. Southern Chaco, 
Argentina, July 5, 1920. 
o BS 21937.....Sawmill in—Gharetr. Souther^Chaco, Argentina, July 5, 1920. 
o BS 21941.Partly dry lagoon bordered by saw grass with somewhat open margins. 
Resistencia, Chaco, Argentina, July 8, 1920. 
o ES 21942.....Lagoon with vegetation covering entire shoreline. Resistencia, Chaco, 
Argentina, July 8, 1920. 
« BS 21943.....Termite nest. Resistencia, Chaco, Argentina, July 8, 1920. 
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o BS 21944... • *Rio Negro, ^typical sluggish stream, near the Rjfo Paraguay. Resistencia, 
/ Chaco, Argentina, July 8, 1920. 
o BS 21951.....Small opossum. Las Palmas, Chaco, Argentina, July 13, 1920. 
° ES 21953.Scrub forest. Las Palmas, Chaco, Argentina, July 13, 1920. 
° BS 21954.Large ant ’s nest. Las Palmas, Chaco, Argentina, July 13, 1920. 
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O BS 21957.Swwaing cowbirds Molothrus bonariensis warming their feet on a cold 
winter’s morning. Las Palmas, Chaco, Argentina, July 13, 1920. 
0 BS 21958.Stream known imj ^Riacho Quia (Dirty Creek^floating vegetation in distance. 
Las Palmas, Chaco, Argentina, July 19, 1920. 
o BS 21961.A wayside boliche (combination store and drinking place). Las Palmas, 
Chaco, Argentina, July 19, 1920, 
o BS 21963.Open savanna in Chaco. Las Palmas, Chaco, Argentina, July 19, 1920. 
o ES 21965.....Cacti and scrubby forest. Las Palmas, Chaco, Argentina, July 19, 1920. 
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o BS 21967.Border of grove on open savanna. Las Palmas, Chaco, Argentina, July 19, 1920 
o BS 21968.A grass-thatched hut built of mud plastered on a frame of wood. Las Palmas, 
Chaco, Argentina, July 19, 1920. 
oBS 21973.....Lagoon. Apparently solid foreground in reality is vegetation resting on 
mud and water j f 6 inches to 2 feet deep. Las Palmas, Chaco, Argentina, 
July 23, 1920. 
e> BS 21974.A Toba Indian family. Las Palmas, Chaco, Argentina, July 23, 1920. 
o BS 21976.....Hut of Toba Indians. Las Palmas, Chaco, Argentina, July 23, 1920. 
.....Orange market. Las Palmas, Chaco, Argentina, July 29, 1920. 
BS 21985 
