The numbers of Psyche issued during the past year were mailed on 
the following dates: 
Vol. 66, no. 4, Dec., 1959: December 28, 1960 
Vol. 67, no. 1-2, March-June, 1960: February 16, 1961 
Vol. 67, no. 3, Sept., 1960: April 13, 1961 
