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Appreciation is expressed for the cooperation, advice, and interest of the VirTis Company, Gardiner, New York, relative to certain aspects of the investigations.
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King, J.R. The freeze-drying of pollens. Econ Bot 15, 91–98 (1961). https://doi.org/10.1007/BF02906765
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DOI: https://doi.org/10.1007/BF02906765