Section 522. Essentials of adverse possession not under written instrument or judgment

For the purpose of constituting an adverse  possession  not
  founded  upon  a  written  instrument  or  a judgment or decree, land is
  deemed to have been possessed and occupied in either  of  the  following
  cases, and no others:
    1.  Where  there  have been acts sufficiently open to put a reasonably
  diligent owner on notice.
    2. Where it has been protected by a substantial enclosure,  except  as
  provided  in subdivision one of section five hundred forty-three of this
  article.