With acknowledgement to OldMod67 I've added better cover scans.
Here's some information on the contents of the book: All stories are reprints.
Introduction: "The Fate of the Martians", by Walter Gillings.
"Sleepers of Mars" sequel to "Stowaway to Mars", novella First published in Tales of Wonder, No. 2, Spring 1938 as by John Beynon.
"Worlds to Barter", novelette, Wonder Stories Vol 2 No. 12, May 1931 as by John B. Harris.
"Invisible Monster", novelette, Wonder Stories vol 5 No. 5, December 1933 as by John Beynon Harris.
"The Man from Earth", novelette, Wonder Stories vol 6 No. 4, September 1934 as "The Man from Beyond" as by John Beynon Harris.
"The Third Vibrator", short story, Wonder Stories vol 4 No. 12, May 1933 as by John Beynon Harris.
Yep, zabadak, you heard correctly;thought you'd get a buzz out of that one! As an aside,ppint, in the late 80s we had Chris Foss for a signing at the bookshop ( I think the store manager knew him..) He had some lovely artwork with him, not the Joy of Sex though (which he also illustrated!) There's a theme here.....
hodder & stoughton coronet books imprint uk p/b first printing, first edition
cover art by chris foss (signed with his "f-in-a-line-drawn-shield" monogram, uncredited)
cover price 30p, $1.00 australia, $1.00 new zealand, $1.25 canada
160pp. including titles, indicia, table of contents etc, end pp. advertising
check indica for lines stating second impression 1973, cover price 30p;
and the near-identical third impression 1974;
the fourth impression 1977 bears new
cover art by colin hay (uncredited, unsigned, attribution in ''flight of icarus'' roger dean)
retains same isbn;
cover price 60p, $1.95 australia, $1.95 new zealand
both these are retained in fifth impression 1979;
and their sixth impression 1981, cover price 95p (no overseas territories prices);
hodder & stoughton's 8/1987 p/b from the same typesetting was moved to their new english library imprint, which publishers hodder & stoughton had bought in 1981; bears new new english library isbn
hodder & stoughton new english library imprint first printing, seventh hodder & stoughton p/b printing
cover art unsigned
cover price £2.25 (no overseas prices?)
160pp. including titles, indicia, table-of-contents etc, end pp. advertising
printed from the same typesetting as the previous six impressions of hodder & stoughton coronet imprint p/b edition, suitably modified (this comment is from another edition of this book)