Key points are not available for this paper at this time.
It has been brought to our attention that wedid not designate the correct collectors of severalof the samples reported in Lamont radiocarbonmeasurements III Science 124, 154 (27 July1956). The following list gives the proper collectors for several samples in Table 4 under V. Arcticstudies : L192B, R. D. Cotell (1952); L261A,B,C,G. Hattersley-Smith (1953); L254A, L248A, R. L.Christie (1954); L254B,C,D, E. W. Marshall(1954); and L248B, G. Hattersley-Smith and A.P. Crary (1954).
Broecker et al. (Fri,) studied this question.