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This article in SSSAJ

  1. Vol. 29 No. 6, p. 761-762
    Received: July 16, 1965
    Accepted: July 22, 1965

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A Tool for Removing Neutron Probe Access Tubes from the Soil1

  1. Ralph E. Campbell
  1. Rocky Mountain Forest and Range Exp. Sta., Forest Service, USDA, Albuquerque, New Mex.; formerly Research Soil Scientist, Agricultural Research Service, USDA, Huntley, Mont.



The tool which is described consists of a tapered shaft jacketed in a split sleeve with matching taper. As the shaft is pulled, it slips in the sleeve causing the sleeve to expand against the inner wall of the access tube. Friction between the sleeve and the tube wall holds the puller in place as the tube is drawn from the soil.

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