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Table of ContentsPotential Use of Russian Thistle (Salsola kali L.) and Other Weeds as an Energy Resource / Marjorie and Aden Meinel and Martin Karpiscak -- Tumbleweed Soup! -- The Mathematics of Solar Energy / P. T. Landsberg -- Editorially Speaking: "Out There"? Or Here? Can We Have it Both Ways? -- Lanzhou Institute of Desert Research, PRC / Zhu Zhen-da -- A Selective List of References Relating to Chinese Deserts / Patricia Paylore -- A Dry Area Tree Project in Kenya / Edmund G. C. Barrow -- So What's New? -- Does Anybody Want? -- Have You Seen? -- Did You Know?