Additional Wayne Boring pencils credit removed by Ted Watson.
house ad for Superboy (DC, 1949 series) #138 [80 Page Giant #G-35], on sale March 14
writer identification by Bob Hughes
Letters submitted by David Lewin; Laura Mafchir; Andrew Steckiw; Spyro Kalas; Johnny Province; Linda Fried; Nancy Goldstein; Steve Ward; Dan Solis.
house ad for Showcase (DC, 1956 series) #68, on sale March 23
hint submitted by Alfreda Doyle of San Antonio, Texas
listing of DC comics on sale late March / early April 1967; includes partial cover art from Strange Adventures (DC, 1950 series) #200 and Challengers of the Unknown (DC, 1958 series) #56