. Carnegie Institution of Washington publication. . A. Salix and Ceanothus indicating planting site in sandhills, Halsey, Nebraska. B. Three-year old plantation of jack pine (Pinus Jivaricata) in sandhills, Halsey, Nebraska. C. Jack pines 10 years after transplanting, Halsey, Nebraska,. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Carnegie Institution of Washington. Washington, Carnegie Institution of Washington

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Keywords: ., bookauthorcarnegie, bookcentury1900, bookdecade1920, bookyear1920