An eminent American expert on Afghanistan, then at Pennsylvania State University, collected numerous essays on paleolithic and chalcolithic and early Iron Age Afghanistan, showing the extent of human cultures in the area dating back tens of thousands of years.
"This monograph presents several preliminary statements concerning the archaeological work done from 1959 to 1966 by the American Museum of Natural History in collaboration with the National Museum of Afghanistan (Kabul) . . .." (From the Preface).