Originally Posted by Johnny Footstool
Seriously, knuckleballs are generally around 60-70 mph. Spitballs are basically wet fastballs, so they're a lot more dangerous.
I had read somewhere that the spitball ban was related to the Chapman death, but I guess that was just one more factor. I have a nice baseball photo book ("Baseball's Golden Age") with pictures by Conlon from the early 20th century that includes pictures of Chapman, Mays and the catcher (whose name escapes me).