Every  copyright  proprietor  is  the  owner  of  certain
general,  and  more  or  less  well  defined,  rights.^^
These  depend  partly  on  the  language  of  the  statute
under  which  they  have  been  secured,  and,  partly,
upon  what  he  has  actually  copyrighted,  that  is,  the
original  portion  of  the  specific  work  involved.*^  In
the  course  of  the  exercise,  or  in  connection  with  the
accrual  of  such  rights,  he  makes,  or  has  made  for
him,  one  or  more  copies,  concrete  replicas  or  physi-
cal reproductions  of  the  copyrighted  work.  By  the
very  act  of  publication,  which  initiates  his  statutory
rights,  he  parts  with  the  possession  of  one  or  more
of  such  copies.®^  The  copies  are  intended  for,  and
are  capable  of,  use.  Use  alone  gives  them  value  and
the  producer  of  the  copies  may,  and,  theoretically
at  least,  does,  obtain  value  for  every  reasonable  use
of  which  they  are  capable.  The  nature  of  a  given
work  largely  determines  the  use  which  may  be  made
of  its  copies.  Thus  dictionaries  and  novels,  for
example,  obviously  stand  on  a  different  practical
basis.  The  nature  of  the  copies  may  also  be  signifi-
cant in  this  connection.  A  design  for  a  work  of  art,
for  example,  a  book  of  legal  forms,  or  a  moving
picture  film,  stand  on  quite  a  different  basis  from
a  volume  of  original  poems.  It  is  elementary  that
every  man  is  presumed  to  intend  the  necessary  con-
sequences of  his  acts.  He  cannot  close  his  eyes,  nor
attempt  to  ignore  known  and  established  business  or
social  usages.    If  he  sells  a  copy  of  a  book,  he  cannot

91— See  §134.
92— See  §484.
93— See  §§  729,  766.
