The numbers of Psyche issued during the past year were mailed on the 
following dates: 
Vol. 74, no. 4, Dec., 1967: June 12,1968 
Vol. 75, no. 1, March, 1968: August 6, 1968 
Vol. 75, no. 2, June, 1968: August 31, 1968 
Vol. 75, no. 3, Sept., 1968: November 15, 1968 
