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"A Daring Trip to Mars", which traces with considerable engineering detail a stress-fraught voyage to the Moon and then Mars, which they able only to orbit due to fuel problems.

Drowsy (1917), is a sentimental love story whose outcome is a child Telepath who, after maturing into an early Superman figure, discovers Antigravity and builds a spaceship, visiting the Moon and Mars, the latter of which is inhabited by humanoid Aliens.

A group of scientific adventurers builds a space ship for the purpose of exploring Mars. The motor device is a shield that protects against earth's gravity while being attracted to Mars. On the return ship they discover a stowaway -- a Martian girl.

France, 1905. In a quiet Normandy village, amateur violinist Denis Borel meets a mysterious white-haired scientist known only as Doctor Omega, who is building an amazing spacecraft, the Cosmos. Doctor Omega invites Borel to accompany him on his maiden voyage - to Mars!

Doctor Omega: A Classic Tale of Space and Time, in which the ingenious, only seemingly scatterbrained Doctor and (after the pattern of Jules Verne) his contrasting companions travel by Antigravity machine to Mars, which is inhabited, most interestingly by the large-brained Macrocephales, who are clearly based on the Selenites in H G Wells's The First Men in the Moon (1900).

A Trip to Venus (1897) is an account of a journey by Spaceship - powered by a new Antigravity as a sustaining Power Source - to an idyllic Utopia on Venus, with a brief excursion to Mercury.

First published in English in 1931, this novel for young adults is an accurate mirror of many of the space travel concepts that have been discussed by pre-war European experts. The author's imaginative theories about the history of the Earth--many of which presage those of Velikovksy and von Daniken--are explored.

A young German scientist and his uncle, with one mechanic, take off in a rocket-like device, and finally reach the moon. An egotistical young American news reporter succeeds in going with them as a stowaway.

First published in English in 1930, this remarkable science fiction novel details the fate of three astronauts whose Spaceship takes off accidentally from its mooring in the artificial Island of New Atlantis, just west of San Francisco. After a daring trip, they reach the Moon. Based on the pioneering work of Hermann Oberth, this suspenseful novel is an accurate mirror of the state of the art of astronautics of the time.

Adrift in the Stratosphere, aimed at a juvenile audience, has a young protagonists accidentally take off in a professor's experimental Spaceship and they soon find themselves attacked by irrationally hostile Martians with various Rays and a madness-inducing Basilisk radio broadcast; there are subsequent tours of Utopias set on space Islands.