Readers and collectors of the green books may have noticed that B.J. Palmer had periods of prolific writing and periods of apparent stagnation. In particular, B.J. did not publish a single green book between 1911 and 1920. The 1911 Announcement of the Palmer School of Chiropractic offers details that help explain the lull in the green book production from Palmer following that year. The Announcement provides some evidence that B.J. did not put down his pen, but rather may have [been] working very hard during this period. B.J. had several green books in the works though it is uncertain why they did not all get published. The author offers several possible explanations for why the proposed volumes did not get published and why others, with different authors and titles were published instead. The discovery of these unpublished works offer Palmer aficionados a glimpse into an alternate universe of green books that might have been.
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