When Madge is walking dog, she passes same watch repair shop twice in the same direction.
Even though the story takes place in December and January in New York City, the sun is always shining, all the principals are dressed in lightweight clothing, and there is no sign of snow or winter conditions anywhere.
The subject implies that Tenth Avenue is the westernmost avenue in Manhattan, the last before the shore. It is not. The docks were actually west of Eleventh Avenue.