Carl wrote at 2013-06-20 13:30:21
This answer is misleading. The list does not represent reprints of the novel in question, but merely instances where "Ralph 124C 41+" is mentioned (such as the article "Prophets of Doom" by the novel's author Hugo Gernsback). It also fails to mention that "Ralph 124C 41+" was reprinted by the University of Nebraska Press in 2000.
Engineer who has read thousands of science fiction books and short stories. Can recommend stories on specific subjects and comment on technical feasibility. Especially good at older out-of-print books and authors.