The other day I was going through my copy of the "Star Trek Chronology." In the book's entry for the Horizon's cultural contamination of Sigma Iotia II (seen in "A Piece of the Action"), it says that the crew of the Horizon "accidentally" left behind the book "Chicago Mobs of the Twenties."
I wasn't so sure about that, because in the episode Kirk asks Bela Oxmyx if the Horizon crew left anything else besides just that single book. Bela responds by telling Kirk that they also left behind books on electronics, etc - apparently more material on the 1920's besides just that single book. Knowing that, it doesn't sound like the Iotian contamination was done by accident - it sounds like the crew of the Horizon were aware of the Iotian's "highly imitative" nature and left behind the books (plural) as a big practical joke.
At least that's my theory! How about yours?
I wasn't so sure about that, because in the episode Kirk asks Bela Oxmyx if the Horizon crew left anything else besides just that single book. Bela responds by telling Kirk that they also left behind books on electronics, etc - apparently more material on the 1920's besides just that single book. Knowing that, it doesn't sound like the Iotian contamination was done by accident - it sounds like the crew of the Horizon were aware of the Iotian's "highly imitative" nature and left behind the books (plural) as a big practical joke.
At least that's my theory! How about yours?