Although Cook’s (28) logic may, superficially, appear reasonable and simple, it is suffering from a few severe flaws that are fundamental. First, 204 Pb is certainly not missing within the Katanga examples; it merely had not been measured! Inside the report, Nier (100) states:
Really, in 20 associated with the 21 examples investigated the actual quantity of typical lead can be so small that certain do not need to simply take account for the variants with its composition. In many different examples where in fact the abundance of 204 Pb had been really low no attempt ended up being built to assess the quantity of it because the dedication could be of no value that is particular. (100, p. 156)
Evidently, neither Cook (28), Morris (92), nor Slusher (117) bothered to see Nier’s (100) complete report and mistakenly interpreted the dash for 204 Pb in Faul’s (46) tabulation as “zero, ” whenever, in fact, this means “not calculated. ”
2nd, the cross that is neutron-capture for 206 Pb and 207 Pb are not equal, as Cook (28) assumes,
But vary by an issue of 24 (0.03 barns for 206 Pb, 0.72 barns for 207 Pb ‡ ). This discrepancy possesses significant impact on the outcome of Cook’s (28) calculation.