An anthology of the "scientific romance," featuring selections by Edgar Rice Burroughs, A. Merritt, Murray Leinstar, Charles B. Stilson, and J.U. Giesy. Following the stories is a history of this genre and pulp magazines.

· Preface · Sam Moskowitz · pr
· Under the Moons of Mars [as by Norman Bean] · Edgar Rice Burroughs · n. The All-Story Magazine Feb ’12
· Darkness and Dawn [Allen Stern; Beatrice Kendrick] · George Allan England · n. The Cavalier Jan ’12
· Polaris—of the Snows [Polaris Janess] · Charles B. Stilson · na All-Story Weekly Dec 18 ’15 (+2)
· Palos of the Dog Star Pack [Jason Croft] · J. U. Giesy · n. All-Story Weekly Jul 13 ’18 (+4)
· Friend Island · Francis Stevens · ss All-Story Weekly Sep 7 ’18
· The Moon Pool [Walter Goodwin] · A. Merritt · na All-Story Weekly Jun 22 ’18
· The Girl in the Golden Atom [Scientific Club] · Ray Cummings · na All-Story Weekly Mar 15 ’19
· The Mad Planet [Burl] · Murray Leinster · na The Argosy Jun 12 ’20
· The Blind Spot [Spot] · Austin Hall & Homer Eon Flint · n. Argosy All-Story Weekly May 14 ’21 (+5)
· A History of “The Scientific Romance” in the Munsey Magazines, 1912-1920 · Sam Moskowitz