under said copyright shall thereafter be forfeited" should be
canceled. These words might lead to the unjust forfeiture of a
copyright if the false affidavit were made by the agent or printer
without the knowledge of the author or owner. Also the words seem
superfluous. If a condition precedent has not been performed, the
right is lost by operation of law without these words. To insert
them implies that the provisions of section 13 are not conditions
precedent to obtaining a valid copyright.
In line 24 the word "and" should be substituted for "or;" and at
the end of line 25 the words "if it has been published" should be
inserted. It is very desirable that all the facts upon which the
copyright depends should be clearly stated when possible.