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  1. 1

    Two ears of corn, two blades of grass. by Killeffer, David Herbert 1895-

    Published 1955
    Book

    Two ears of corn, two blades of grass.
  2. 2

    New riches from the soil; the progress of chemurgy by McMillen, Wheeler 1893-

    Published 1946
    Book

    New riches from the soil; the progress of chemurgy

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