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Detail of terrain and Pinus contorta 1937-08-07 California	Lupinus 1937-08-07 California	Lupinus 1937-08-07 California
Across the valley 1937-08-08 California	View across the valley 1937-08-08 California	Bunch grass, other grasses, hill 1937-08-08 California
Aristida longiseta stage on Bouteloua gracilis - other veg. 1937-09-12 Colorado	General view, Jenk's cabin 1938-08-25 New Mexico	General view 1938-08-25 New Mexico
Detail of Jenk's cabin built 1938-08-25 New Mexico	Detail of cabin 1938-08-25 New Mexico	Cabin and surroundings 1938-08-25 New Mexico
Unused natural veg. near cabin - Willows, yarrow, plenty of feed 1938-08-25 New Mexico	Mamillaria vivipara 1940-06-10 Colorado	Mamillaria vivipara 1940-06-10 Colorado
Bouteloua gracilis 1 ft. apart, veg. 1940-06-11 Colorado	Bouteloua gracilis 1 ft. apart, veg., but looking NE 1940-06-11 Colorado	Old road veg. 1940-06-11 Colorado
Bouteloua gracilis 1 ft. apart, veg. but Lappula occidentalis 1940-06-11 Colorado	Once pure bunch grass, SE of Lindleys blow out. 1940-06-12 Colorado	Veg. on flat prairie, once pure bunch grass, SE of Lindleys blow out. 1940-06-12 Colorado
Russian thistle wilting as a result of silting in on short grass 1940-06-14 Colorado	Thistle on fresh silt, short grass 1940-06-14 Colorado	Short grass, 3% of grass lived 1940-06-14 Colorado
Short grass, 3% of grass lived, but town in back 1940-06-14 Colorado