University of Saskatchewan radiocarbon dates, [Part] 2.

Abstract

List of radiocarbon dates obtained at the University of Saskatchewan since the last report was issued in 1955. The method used is essentially that of Suess, in which the sample is counted as acetylene gas. The proportional counter has a sensitive volume of 1 liter and is filled with acetylene to a pressure of 1 atm. Each sample is counted for at least two 20-hr. periods. The modern standards used were obtained from softwood logs grown in northern Saskatchewan and were either 50 or 100 years old as obtained from ring counts. All samples were treated with acid to remove carbonates. In addition, all samples in which there might have been the slightest danger of contamination by precipitation of younger humus were boiled with a 2% Na solution.