CHAPTER IV.
THE STEPHENSONS AT KILLINGWORTH--EDUCATION AND SELF-EDUCATION.
Efforts at Self-improvement.--John Wigham.--Studies in Natural Philosophy.--Education of Robert Stephenson.--Sent to Bruce's School, Newcastle.--His boyish Tricks.--Stephenson's Cottage, West Moor.--Mechanical Contrivances.--The Sun-dial at West Moor.--Stephenson's various Duties as Colliery Engineer. 137