This next one is by the English painter JMW Turner.  It's called Rain, Steam Spead - The Great Western Railway and it's from 1844.  I think about the idea of transitions when I look at this painting for 2 main reasons.  The first is that at this point in time, the Steam Engine was a fairly new invention and it transformed the world at that time.  People were able to travel father and faster than ever before so it was really a transitional time.  The second reason that I chose this painting is because of the way in which Turner applied the paint.  The very style of the paint feels like steam and power and speed.  This style marked a new approach to painting, a "transition" from a previous style to something new, that can be seen as a precusor to the Impressionists that were soon to come.