Prehistoric man

"Shows three examples, from among hundreds now going on, of underwater archaeological work on sites involving prehistoric man. One involves the privately underfunded work on a crannog in Lock Tay, a Bronze Age site. The other is a government funded work on lake dwellers in various sites in Switzerland, also primarily Bronze Age. The third is a privately underfinanced project in Warm Mineral Springs in Florida, where the site is Stone Age."
"Examines three underwater archeological sites in North America, Switzerland, and the central highlands of Scotland for their evidence of early primitive man."@en