What we need is to refer to the original script. Surely there's somebody on this BBS who's purchased a copy from Lincoln Enterprises/Roddenberry.com and can check what it says?
Blish commonly used much earlier drafts than the final shooting draft, which is what Lincoln Enterprises/Roddenberry.com sells. I found an online reference the other day that stated that the versions Blish used no longer seem to exist.
Ah, here: Memory Alpha says "Due to the lead times required for publication of print books such as these, James Blish was forced to use the only scripts available from Desilu promotions, which were draft scripts that had been discarded. As many of these draft versions have been lost in the years since the series ended, Blish's adaptations are now seen as valuable resources for those researching how the early episodes evolved from script to film."