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 retained

CANADIAN COPYRIGHT MEASURE 569

together with one copy of each work deposited at the De- Copies partment: Provided that the Minister may retain at the transmitted Department such copies of deposited works as appear in f"^^._ his opinion proper, but a copy of any work so retained shall be transmitted to the Library of Parliament of Canada or to the British Museum upon receipt of a demand in writ- ing from the proper authority, such demand to be received by the Minister within six months after the date of regis- tration of the work. Any copy of a work retciined by the Minister as to which no demand is received within the time limited shall be returned to the owner of the copyright, or otherwise disposed of as to the Minister seems proper.

SPECIAL PROVISIONS AS TO CERTAIN WORKS

28. In the case of a literary, dramatic or musical work Copyright in or engraving which has not been published, nor, in the case posttumous of a dramatic or musical work been performed in public, nor, in the case of a lecture, been delivered in pubUc, in the lifetime of the author, copyright shall, subject to the pro- visions of this Act as to first publication elsewhere than in Canada, subsist till publication, or performance or delivery in public, whichever may first happen, and for a term of fifty years thereafter.

29. In the case of a work of joint authorship copyright Works of shall subsist during the life of the author who first dies and Jojnt^ for a term of fifty years after his death, or during the life of the author who dies last, whichever period is the longer.

authors

30. Where the work of an author is first published as an Collective article or other contribution in a collective work (that is to ^o'l^s

say) : —

(o) an encyclopaedia, dictionary, year book, or similar

work;

(6) a newspaper, review, magazine, or other similar periodical ;

(c) a work written in distinct parts by different au- thors ; and the proprietor of the collective work is not by virtue of