Photograph of Bermuda sod strips in lower end of outlet channel after a 4.6 to 5 inch depth of flow. OK-6090.

Photograph of terraced cotton field showing runoff water stored in the terrace channels 15 hours after a one-inch rain. The light colored strip beyond the water line shows the strip of land flooded shortly after the rain. OK-3/2406.

Photograph of water standing in lister furrows and terrace channel after a four-inch rain in a cotton field planted on the contour.

Photograph of water standing in lister furrows and terrace channel after a four-inch rain in a cotton field planted on the contour. OK-5839.

Photograph of cooperating farmers andSoil Conservation Service Conservationist examining nodular development on roots of sweet clover plants. This patch, 8 1/2 acres sown in fall in a strip on the contour will be utilized as seed and soil building crop.

Photograph of planting cotton on the contour in a terraced feld with large tractor.

Photograph of a cotton field with rows running up and down the hill during a 4-inch rain. Note the relatively small amount of water in the rows. It is running down in the hill and emptying into the wash in the background. This wash is cutting directly across the filed and is over 100 feet wide and about 18 inches deep. This picture was taken the same time as picture number Okla. 5837. Contract the pictures for the value of contour farming. This farm is situated directly North across Highway No. 9 of the Thayer farm shown in picture number Okla. 5837.

Photograph of cotton planted on the contour in a terraced field, showing lister furrows and terrace channel full of water after a four inch rain. Note small cotton plants in lister furrows. Contrast this picture with Okla-5838, which was taken at the same time showing a cotton field with rows up and down the hill immediately across the road.

Photograph of flooded alfalfa field from overflow of N. Canadian River.

Photograph of cutting and threshing wheat on the contour with a combine in a terraced field. The wheat was drilled in with a deep furrowed drill on the contour.

Photograph of cutting and threshing wheat on the contour with a combine in a terraced field. The wheat was drilled in with a deep furrowed drill on the contour.

Photograph of cutting rye withbinder on terrace. Rye broadcasted and cultivated in with cultivator on contour.

Photograph of North fork of Canadian River in flood stafe changing courses and cutting into wheat field. Approximately three acres of wheat land shelved into river in June 1937.

Photograph of three UNIDENTIFED men harvesting wheat on the contour with a combine cutting an eight-foot swath. The back of the photograph proclaims, "Harvesting wheat on the contour with a combine cutting an eight-foot swath. The wheat was drilled in on the contour with a deep furrow drill and the field was terraced."

Photograph of two UNIDENTIFED men harvesting wheat on the contour on top of a terrace with combine running lengthwise of terrace. Combine cutting an eight-foot swath. Another UNIDENTIFEID man in a tie stands off to the extreme left. The back of the photograph proclaims, "Harvesting wheat on the contour on top of a terrace with combine running lengthwise of terrace. Combine cutting an eight-foot swath. Wheat drilled in on contour with deep furrowed drill."

Photograph of an UNIDENTIFED farmer and an UNIDIENTIFED Soil Conservation Service Conservationist examining modular development on roots of sweetclover plants. The back of the photograph proclaims, "Shows cooperating farmers and Soil Conservation Service Conservationist examining modular development on roots of sweet clover plants. This patch – 8 ½ acres sown in fall in a strip on the contour will be utilized as seed and soil building crop."

Photograph of a UNIDENTIFED man cultivating grain sorghum on the contour with a two row cultivator. The back of the photograph proclaims, “Cultivating grain sorghum on the contour with a two row cultivator."

Photograph of harvesting wheat on the contour with a combine cutting an eight foot swath. He wheat was drilled in on the contour with a deep furrow drill and the field was terraced.

Photograph of water standing in listed ridges in strip cropped field with oats and listed feed. This picture was taken shortley after a heavy downpour.