All readers of Vladimir Nabokov are astonished by his extraordinary ear for American speech in all its varieties. In "Lolita," though, there is what appears to be a curious anomaly. On two or three occasions, Humbert Humbert informs us that he stopped at a “candy bar” to purchase sweets for Lolita. So far as I know, a candy bar is something you eat, not a place to buy candy. Is this is a slip on Nabokov’s part? In a sense, it’s impossible to say, because Humbert is the narrator and the slip might just as well (or even more plausibly) be attributed to him. Or perhaps it isn’t a slip – perhaps there are or were such places as candy bars. But it’s a usage I’ve never encountered.