Methodic

a.
  1. Arranged with regard to method; disposed in a suitable manner, or in a manner to illustrate a subject, or to facilitate practical observation; well-ordered; as, the methodical arrangement of arguments; a methodical treatise.
  2. Proceeding with regard to method; characterized by method or orderliness; systematic; as, a methodical investigation.
  3. Of or pertaining to the ancient school of physicians called methodists.