I think he's talking about being away from home and someone he cares about. "This European air it always warms my face I wish I could buy some " - perhaps this is reference to a warmer climbate (than Britain).
I think he's talking about being away from home and someone he cares about. "This European air it always warms my face I wish I could buy some " - perhaps this is reference to a warmer climbate (than Britain).