Revision history of "File:McCall Article 2. Figure 2.PNG"

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  • (cur | prev) 18:04, 18 August 2016‎ Debra Tabron (talk | contribs)‎ . . (163 bytes) (+163)‎ . . (Figure 2: The outer casing of the dual-tube system remains in place to control the bore hole as the inner rod is used to trip out the sample barrel with soil core.)
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