DP - MPI Library TY - JOUR T1 - Rubber Crystals Are Produced UR - https://www.jstor.org/stable/3905737 UR - http://dx.doi.org/10.2307/3905737 T2 - Science newsletter : the weekly summary of current science SP - Vol. 18, No. 493 (1930), p. 181 CY - Washington PY - 1930 N1 - Copyright: Copyright 1930 Science Service, Inc. ER -