Morse later revised the book as volumes II & III of a four volume study of Shiel issued by The Reynolds Morse Foundation (now The Salvador Dalí Foundation) 1979-1983. The series included one volume of photo-offsets of the periodical versions of two novels, The Empress of the Earth, The Purple Cloud, and 15 short stories, one volume of bibliography, greatly expanded from the 1948 edition, a volume of mostly biographical material with some bibliographical material, including a section on sometime Shiel collaborator, Louis Tracy, and a final volume of essays about Shiel.[1]
References
Chalker, Jack L.; Mark Owings (1998). The Science-Fantasy Publishers: A Bibliographic History, 1923-1998. Westminster, MD and Baltimore: Mirage Press, Ltd. p. 269.