inside front cover; house ad for The Adventures of Jerry Lewis (DC, 1957 series) #102, on sale July 11
Script credit from Martin O'Hearn http://martinohearn.blogspot.com/
house ad for Superman's Girl Friend, Lois Lane (DC, 1958 series) #77 [80 Page Giant #G-38], on sale June 29
house ad for Showcase (DC, 1956 series) #70, on sale July 25
letters submitted by Jack Walker; Alan Martin; Don Markstein; Steven Carlberg; Herman Reeves
hint submitted by Leon Gamble of El Segundo, California