Section 523. Removal by mayor after hearing

Any member of the board of
  education or of the local school board may be removed by  the  mayor  on
  proof  of  official  misconduct  in  office or of negligence in official
  duties or of conduct in any manner connected with  official  duties,  or
  otherwise,  which  tends  to  discredit the office of such member or the
  school system, or for mental or physical inability  to  perform  duties;
  but  before  removal  such member shall receive notice in writing of the
  charges and copy thereof, and shall be entitled to a hearing  on  notice
  before the mayor and to the assistance of counsel at said hearing.