Notes: Apr. 1964←May 1964→Jun. 1964 Vol. LXXIII, No. 3. Cover illustration for "Undercurrents" (untitled in the magazine). Issued in large format (8.25 x 11 in.) A second price, of 5/-, is shown on the cover. The author of "The Problem of the Gyroscopic Earth" is given in the table of contents as "Capt. J. P. Kirton", but without the "Capt." at head of the article. "Once a Cop" is listed as a "Short Novel". "Palmistry; 1964!" is not in table of contents. (And, yes, that is a semicolon, though this is likely a typo.) The reviews on p. 85 are embedded in an initial essay, titled "Outsiders", which also mentions at some length the new paperback edition of A Clockwork Orange which included a study of Burgess by Stanley Edgar Hyman. The reviews of The Ship from Outside & Beyond the Galactic Rim compose a single entry; this is an Ace double. The reviews of Skylark of Valeron & The Hand of Zei / The Search for Zei, & those on p. 90, are reprint notices with comments. The full text and images of this edition are available at Luminist.org, see web page for link.