E.E. Doc Smith

Triplanetary

Triplanetary

Skylark Three

Triplanetary

The Galaxy Primes

Spacehounds of IPC

Galactic Patrol

Sci-Fi Robots and Androids 2 - 9 Science Fiction Short Stories by Philip K. Dick, Michael Shaara, EE "Doc" Smith, Alfred Bester, Roger D. Aycock, Robert Sheckley, Harry Harrison, and James Rosenquest: Killer Machines, Rogue AI, and the Rise of the Robots

Triplanetary

First Lensman

Gray Lensman: Hugo Finalist For All Time Best Series

Children of the Lens