Any additional entries will cause earlier entries to be removed as normal.
Starting with volume three, Niven himself has composed several additional entries.
That offered the possibility of an additional, and significant, entry to the dummy.
That is not always necessary, a progressive squeeze still works if we have an additional entry as compensation.
Also, the citational style has been tightened, undoubtedly to create space for additional entries.
In 1971 a 33rd supplement volume was published containing 25,000 additional entries.
A 1971 supplement contains 25,000 additional entries and references to primary sources.
Also, there is normally an additional entry under the editor.
Still, some folks chimed in with some great additional entries.
Three additional male entries were witnessed in the second, third and the fourth week.