Home › Articles › Mind and Disposition. – Chapter 1 – REPERTORY OF HERING’S GUIDING SYMPTOMS OF OUR MATERIA MEDICA By Calvin B. Knerr, M.D. Print ← Back to Articles Article Mind and Disposition. – Chapter 1 – REPERTORY OF HERING’S GUIDING SYMPTOMS OF OUR MATERIA MEDICA By Calvin B. Knerr, M.D. Main Main