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Highlights the results of a study which analyzed surface rocks at the Great Falls of the Potomac and the adjacent Mather Gorge outside Washington, and Holtwood Gorge on the Susquehanna in central Pennsylvania. Dating of the gorges on the Susquehanna and Potomac Rivers; Researchers' determination of how fast the gorges were cut.

Reports that a group of archaeologists, in an attempt to date the arrival of the first Americans, have found traces of chert and flint tools in Barnwell, South Carolina. Assurance that the specimens are crafted, not natural, from Dr. Albert C. Goodyear; Possibility that American prehistory is earlier than previously assumed; Plans for laboratory work and dating procedures; Variety of theories on the advent of early Americans.