over  her  working  and  navigation,  are  transferred  for  the  time
being  to  the  persons  who  use  her.  .  In  such  cases  the  contract  is
really  one  of  letting  the  ship,  and,  subject  to  the  express  terms  of
the  charter  party,  the  liabilities  of  the  shipowner  and  the  charterer
to  one  another  are  to  be  determined  by  the  law  which  relates  to  the
hiring  of  chattels  (a),  and  not  by  reference  to  the  Kabilities  of
carriers  and  shippers.
Also,  a  charter  party  may  be  made  for  other  purposes  than  the
carriage  of  goods;  for  example,  for  passenger  service,  or  for
towage  or  salvage.  These,  also,  are  not  such  contracts  as  fall
within  the  scope  of  this  book,  and  the  rules  with  regard  to  contracts
of  carriage  may  in  some  eases  not  be  applicable  to  them.
Most  commonly,  however,  charter  parties  are  made  for  the
purpose  of  securing  to  the  charterer  the  use  merely  of  the  ship  on
a  particular  voyage  or  series  of  voyages.  He  does  not  desire' to
interfere  with  the  manner  in  which  she  is  to  be  navigated,  nor  is
the  shipowner  willing  to  part  with  his  control  over  her.  The
charterer  is  content  with  the  owner's  undertaking  that  the  voyage
shall  be  performed,  and  that  the  vessel's  services  shall  be  at  his
disposal.  The  whole  control  and  management  of  the  ship  is
therefore  left  undisturbed  in  the  hands  of  the  owner,  who  remains
in  possession  by  his  servants,  the  master  and  crew.  In  such  a  case
the  shipowner  acts  as  a  carrier  of  the  goods  upon  the  agreed
terms  {b).
