On September 8, 1906, Volume 1 of Modernized Chiropractic was copyrighted with the Library of Congress. Excerpts from a mostly handwritten draft of the text were published in The Chiropractor's Protege by Timothy J. Faulkner, DC (2017). These images along with Smith's new introduction written in 1932 demonstrate that he was the author of the book. Langworthy was mostly the publisher and Paxson the editor.
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