Hey, I've never been to Salford - who am I to tell you that streetwalkers are any more visible in the spring than in the winter there, especially when they are only to be found down by the docks? That doesn't change the implications of the phrase "a girl in the streets at night"; it just makes the meaning slightly less direct and literal. Again, I can't believe that a wordsmith such as EM would have missed the insinuation, which he could have easily averted with the alteration of a word or two.