Cities in Flight was by Blish – one of my favorites, though. Individual elements don’t hold up, but the totality of the thing, and the Big Ideas still remain favorites of mine.
I finially finished Last and First men recently and it is Epic, but also… hunh. Not sure. Bizarre. Martian Chronicles I read too many times to count in Jr High and High School. I’ve yet to read Doctor Rat – thanks for the reminder. I greatly enjoyed “Bear went over the Mountain” by same.