The numbers of Psyche issued during the past year were 
mailed on the following dates: 
Vol. 63, no. 4, Dec., 1956: November 18, 1957 
Vol. 64, no. 1, March, 1957 : January 10, 1958 
Vol. 64, no. 2, June 1957: May 1, 1958 
Vol. 64, no. 3, Sept., 1957 : August 14, 1958 
