All at Internet Archive in multiple formats.
- Two novels, both apparently reprints, "selected by the editors of Galaxy Science Fiction Magazine", & published under "Galaxy Science Fiction Novel" series: J Leslie Mitchell's "Three Go Back" (1932) (download) ("A powerful story mixed with science & sex"), & Edmond Hamilton's "City At Worlds End" (1951) (download).
- Planet Stories, September 1951; download.
- Fantastic Novels, July 1940; download: Includes a novel & a short story. Novel is Austin Hall & Homer Eon Flint's "The Blind Spot".