S.O.S. FROM THREE WORLDS. Murray Leinster, William Fitzgerald Jenkins.

S.O.S. FROM THREE WORLDS. New York: Ace Books, Inc., [1961]. Small octavo, pictorial wrappers. First edition. Ace Books G647. Three "Med Ship" stories, all featuring Calhoun and Murgatroyd, a small furry sentient creature from one of the Deneb planets that can produce antibodies for any disease: "Plague of Kryder II," "Ribbon in the Sky" and "Quarantine World," all first published in ASTOUNDING SCIENCE FICTION. A fine copy. (#158308).

Price: $25.00

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