Section 472-M. Power of corporation as to children in its care; corporation to act as guardian

Said corporation shall have the custody and control
  of all children surrendered, committed,  placed  or  transferred  to  it
  under sections four hundred seventy-two-j to four hundred seventy-two-l,
  and  shall  have  authority  by  its  officers or agents to restrain and
  direct them, to assign them to suitable employments, to determine  their
  hours of labor, study and rest, to care for their sustenance and health,
  and  to instruct them in useful knowledge; and shall have power to place
  such children in suitable homes where they may be adopted into  families
  or  taken  on  trial or for a limited time, or to place such children in
  group homes or group residences operated by the corporation or by  other
  agencies;  or, in its discretion, to return them to their former home or
  their parents or guardians under the supervision  and  guidance  of  the
  corporation.    And  said corporation may, with the consent of any other
  agency authorized by law to take the custody and  control  of  children,
  transfer  to  such  other  agency  the  custody and control of any child
  whenever such transfer is deemed by said corporation to be necessary and
  proper for the welfare of such child or for the discipline or protection
  of other children  in its charge, provided that there be first  obtained
  from  a  judge  of  a  court  of  record    an order of approval of such
  transfer.