15) This picture of the van driver saying goodbye to his horse as he drives off at the wheel of a new articulated dray symbolises the change-over which is now taking place. There are still 5,000 horses at work for British Railways, but they are generally being replaced by motor vehicles and their stables will know them no more. British Railways have over twelve thousand motor vehicles, and the number is constantly increasing.

We have now seen something of how parcels and goods are dealt with on the railways. Now let me tell you some-thing about the wagons which carry not only that mer-chandise, but coal, coke, iron ore, and machinery. First of all, how are they directed from one place to another?