This is a series of four academic volumes to be studied as part of the chiropractic curriculum for the student to learn chiropractic and graduate as a chiropractor. It is the rectified version of its original precursor, "CHIROPRACTIC TEXT BOOK" written by Dr. Ralph W. Stephenson in 1927. Portions of the text are taken directly from the original and updated with NEW knowledge constructed from NEW information of the last hundred years. The instructions contained therein are further developed from the original concepts of the founder of chiropractic, Dr. Daniel David Palmer, and his son, the developer of chiropractic, Dr. Bartlett Joshua Palmer.