Upon my arrival at Lamont (Fig. 3a), I was assigned to help out in the radiocarbon counting laboratory. In those days, there were only three or four labs in the world conducting such analyses and all used the method developed by Willard Libby, the inventor of this ever so important dating tool (Libby, 1955). Professor Kulp explained to me that the carbon in the sample to be dated was first converted to elemental carbon black. A slurry of this carbon was then spun onto the inside of a stainless steel cylinder. After drying, the cylinder was...

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