These observations were made on tree rings of the sequoia gigantea from the British Museum dating back about 1500 years. Deviations in radiocarbon ages have also been observed by Elizabeth Ralph (1959) on samples of historicallyanbsp;...
|Title||:||Problems Related to Interplanetary Matter|
|Author||:||National Research Council (U.S.). Committee on Nuclear Science|
|Publisher||:||National Academies - 1961|