1940 science fiction novels

Kallocain is a 1940 dystopian novel by Swedish novelist Karin Boye that envisions a future of drab terror. Seen through the eyes of the idealistic scientist Leo Kall, Kallocain is a depiction of a totalitarian world state. An important aspect of the novel is the relationships and connections between the various characters, such as the marriage of the main character and his wife, Linda Kall, and the feelings of jealousy and suspicion that may arise in a society with heavy surveillance and legal uncertainty.

novel by Adolfo Bioy Casares

Slan is a science-fiction novel by the Canadian-American writer A. E. van Vogt (1912–2000) — it is also the name of the fictional race of superbeings featured in the novel. The work was first serialized in the magazine Astounding Science Fiction (Sept–Dec 1940) and then published in hardcover in 1946 by Arkham House in an edition of 4,051 copies.

1940 novel by Edgar Rice Burroughs