140 Copyright Act, 1911.
§24(1). in the first column of the First Schedule to this Act, or to any interest in such a right, he shall, as from that date, be entitled to the sub- stituted right set forth in the second column of that schedule, or to the same interest in such a substituted right, and to no other right or interest, and such substituted right shall sub- sist for the term for which it would have subsisted if this Act had been in force at the date when the work was made and the work had been one entitled to copyright thereunder :
Provided that —
(a) if the author of any work in which any such right as is specified in the first column of the First Schedule to this Act subsists at the commencement of this Act has, before that date, assigned tlie right or granted any interest therein for the whole term of the right, then at the date when, but for the passing of this Act, the right would have expired the substituted right conferred b}^ this section shall, in the absence of express agreement, pass to the author of the work, and any interest therein created before the commencement of this Act and then subsisting shall determine; but the person who immediately before the date at which the right would so have expired was the owner of the