The Crystal City Under the Sea by Andre Laurie tells the story of intrepid French submariners who discover the sole survivors of Atlantis living within a crystal dome on the ocean floor. English edition published in 1896. With the original illustrations. 

Conquest of the Moon. Andre Laurie was a contemporary and sometimes collaborator with Jules Verne. In this novel, he describes a trip to the moon made by dragging the moon to earth via giant electromagnets! Originally published in 1889. Includes the original illustrations.

The Green Man of Graypec by Festus Pragnell was one of the last SF novels to set its action in a world within an atom. Although this idea was already old-fashioned by the time this book was originally published, it is still one of the greatest Burroughsian fantasies ever written.

The Earth-Tube. G. Edward Pendray, one of the founding-fathers of modern rocketry and spaceflight, wrote science fiction under the name "Gawain Edwards". In this epic novel he tells how a mysterious Asian nation attempts to conquer the world through super-science and a tunnel bored through the center of the earth.

Banned as obscene when originally published in 1922, Fantazius Mallare by Ben Hecht has become a classic novel of decadence and mystic existentialism. Includes the original illustrations by Wallace Smith.

Ralph 12C41+ is at one and the same time one of the most famous works of science fiction and one of the most reviled. While it certainly lacks any qualities as literature, it does offer a fascinating and extraordinarily detailed glimpse into the future world of AD 2660 as seen from 1911. Additionally, this was the first work of fiction by one of the pioneers of modern science fiction, Hugo Gernsback, who, more than a decade later, was to create the first magazine devoted to the genre. Illustrated, with an afterword.