Chapter XXXIV: Section 20: seems calculated to work an injustice to novelists

That the author's exclusive right to dramatize his copyrighted
work should cease in the event of his being unable within ten
years to induce managers to produce his dramatization would be
unfair--would, in fact, encourage producers to wait until after
ten years before producing a dramatization of a novel. Would it
not be sufficient to state that the exclusive right terminates at
the end of ten years provided the author does not file at least an
unpublished dramatized version?

Does this section 20 mean that a foreign dramatist who deposits an
unpublished and untranslated copy of a dramatic composition loses
his rights if his play is not produced publicly in ten years, or
does it allow him to deposit a translated unpublished copy any
time within ten years, in order to protect his rights?