Home › Articles › Inner Head – Chapter 3 – REPERTORY OF HERING’S GUIDING SYMPTOMS OF OUR MATERIA MEDICA By Calvin B. Knerr, M.D. Print ← Back to Articles Article Inner Head – Chapter 3 – REPERTORY OF HERING’S GUIDING SYMPTOMS OF OUR MATERIA MEDICA By Calvin B. Knerr, M.D. Main Main