CHAPTER V.
THE LOCOMOTIVE ENGINE--GEORGE STEPHENSON BEGINS ITS IMPROVEMENT.
Slow Progress heretofore made in the Improvement of the Locomotive.--The Wylam Wagon-way.--Mr. Blackett orders a Locomotive.--Mr. Blenkinsop's Leeds Locomotive.--Mr. Blackett's second Engine a Failure.--The improved Wylam Engine.--George Stephenson's Study of the Subject.--His first Locomotive constructed.--His Improvement of the Engine, as described by his Son.--Invention of the Steam-blast. 152