Photograph of irrigated cotton. Cotton irrigated with water stored in Site 28, Calvary watershed. Small siphon tubes are used because of short runs. Bob Wright, watershed Conservationist, is in the picture. OK-1443-9.

Photograph of irrigated cotton. Cotton irrigated with water stored in Site 28, Calvary watershed. Small siphon tubes are used because of short runs. Bob Wright, watershed Conservationist, is in the picture. OK-1443-9.

Photograph of Lowell Caskey and Walter Hart discussing and posing with organic matter and soil fertility on the Lowell Caskey Farm. The Lowell Caskey Farm, according to the photograph, has the oldest vetch planting in the country due to his crop rotation of vetch since 1936. People shown in photo go as followed from left to right: 1. Lowell Caskey, 2. Walter Hart. The back of the photograph proclaims, "Lowell Caskey and Walter Hart discussing organic matter and soil fertility. This field has had a crop of vetch in rotation every year since 1936, the oldest vetch planting in the country."

Photograph of Lowell Caskey and Walter Hart discussing organic matter and soil fertility. This field has had a crop of vetch in rotation every year since 1936, the oldest vetch planting in the country.

Photograph of a small boy holding a stinger of fish taken from a farm pond stocked with Bass and Crappie. Pond fertilized with barnyard manure and baled alfalfa.

Photograph of a rotovater at work. Manufactured by the Howard Rotovater Company and sold by International Harvester of Tulsa, Oklahoma. OK-574-5.

Photograph of International sod drill in Bermuda grass on the R.D. Angus farm drilling winter oats and hairy vetch. OK-570-7.

Photograph of a sod drill manufactured by H.L. Pray of Tulsa, drilling winter oats and hairy vetch into Bermuda sod. OK-574-3.

Photograph of grain sorghum following a heavy growth of vetch and rye turned under last spring. Class II land: Taloka Soil Association.

Photograph of the second year growth of Balck Locust and Chinese Elm trees planted in contour rows for post lot.

Photograph of second year growth of black locust abd Chinese elm trees planted in contour rows for post lot. OK-6782.

Photograph of second year growth of black locust abd Chinese elm trees planted in contour rows for post lot. OK-6782.

Photograph of four UNIDENTIFIED workers standing on and near a wooden bridge that will be replaced with an earth fill and drop inlet. The back of the photograph proclaims, "Site for drop inlet. This bridge will be replaced by an earth fill. To be followed with later picture. Furthermore, four UNIDENTIFIED workers are on and near the bridge."