DP - MPI Library TY - JOUR T1 - In Science Fields UR - https://www.jstor.org/stable/3927262 UR - http://dx.doi.org/10.2307/3927262 T2 - Science newsletter : the weekly summary of current science SP - Vol. 57, No. 13 (1950), p. 200-201 CY - Washington PY - 1950 N1 - Copyright: Copyright 1950 Science Service, Inc. ER -