Section 10. Offices of commission; meeting; stationery, et cetera

The
  principal office of the public service commission shall be in  the  city
  of  Albany, in rooms designated by the commissioner of general services.
  The public service commission shall also maintain a branch office in the
  city of New York. The commission shall hold  stated  meetings  at  least
  once  a  month  during  the  year  at  its  office. The offices shall be
  supplied with all necessary  books,  maps,  charts,  stationery,  office
  furniture,  telephone  and telegraph connections and all other necessary
  appliances, to be  paid  for  in  the  same  manner  as  other  expenses
  authorized by this chapter.