Now free, Sam Moskowitz’s 1970 book Under the Moons of Mars: A History and Anthology of “The Scientific Romance” in the Munsey Magazines, 1912-1920. On Archive.org, with .ePub and Kindle .mobi versions available.
Put the Munsey magazines in context with SFFAudio’s .mp3 podcast interview with Robert Weinberg about the history of pulps before Amazing. Starts at 5:54.

