Page:Copyright, Its History And Its Law (1912).djvu/158

 now depends upon (i) publication with the notice of copyright, and (2) deposit of copies, these copies in the case of books and certain other works to be manufactured within the United States. The accidental omission of the copyright notice from "a particular copy or copies" does not invalidate the copyright though it may relieve an innocent trespasser from penalty as an infringer; but failure to deposit within a specified time, or false report as to manufacture, makes the copyright not valid.

The general provisions as to formalities are as follows (sec. 9): "That any person entitled thereto by this Act may secure copyright for his work by publication thereof with the notice of copyright required by this Act; and such notice shall be affixed to each copy thereof published or offered for sale in the United States by authority of the copyright proprietor, except in the case of books seeking ad interim protection under section twenty-one of this Act"; and (sec. 10): "That such person may obtain registration of his claim to copyright by complying with the provisions of this Act, including the deposit of copies, and upon such compliance the Register of Copyrights shall issue to him the certificate provided for in section fifty-five of this Act."

The definition in the act (sec. 62) of "the date of publication " as " the earliest date when copies of the first authorized edition were placed on sale, sold, or publicly distributed by the proprietor of the copyright or under his authority" defines publication, and the clause (sec. 9) requiring the copyright notice to be affixed to each copy "published or offered for sale in the United States by authority of the copyright proprietor" confirms the principle that the copyright proprietor cannot be held responsible, nor can copyright bevoided because of copies "published," offered,