CHAPTER VII.
GEORGE STEPHENSON'S FARTHER IMPROVEMENTS IN THE LOCOMOTIVE--ROBERT STEPHENSON AS VIEWER'S APPRENTICE AND STUDENT.
Stephenson's Improvements in the Mine-machinery.--Farther Improvements in the Locomotive and in the Road.--Experiments on Friction.--Early Neglect of the Locomotive.--Stephenson again meditates emigrating to America.--Employed as Engineer of the Hetton Railway.--Robert Stephenson put Apprentice to a Coal-viewer.--His Father sends him to Edinburg University.--His Studies there.--Geological Tour in the Highlands. 198