CONTENTS. 



CHAPTER I. 



PAGE 



Introduction. — The Mechanical Foundation of Physical 

 Science. — ' Matter, Living Force, and Heat.' — State of the 

 Language and Knowledge of Physical Science in 1838. — 

 No Recognized Measure of Mechanical Effect. —The 

 Materiality of Heat. — Mechanical Origin of Heat. — Con- 

 trary Evidence of the Condensing Steam Engine. — 

 Dependence of the Work Developed on Temperature. — 

 Carnot's Law. — The Locomotive Obtrusive. — Suggestions 

 as to Conversion of Heat into Work; Seguin, Mayer, 

 and Colding. — Chemical and Physical Effects. — Discoveries 

 of Oersted, Sturgeon, Ohm, and Faraday. — Invention of 

 Electro-Magnetic Engine. — Evidence of Convertibility of 

 Heat and Work not Recognized ' ... 1 



CHAPTER II. 



Parentage and Early Life. — Sees the First Train. — 

 Education and Companionship with his Brother. — Asso- 

 ciation with Dalton. — Similarity of the Works of Dalton and 

 Joule. — The Brothers' Vacations. — Their Amusements. — 

 Under Treatment for the Spine. — Commencement of 

 Life. — Continued Companionship. — Visits to Dalton. — 

 Further Instruction in Chemistry. — Intercourse with 

 Sturgeon and Members of this Society. — Joule a Dangerous 

 Companion with a Gun. — British Association. — Dr. 

 Scoresby. — Visit to Bradford. — Interruption of Companion- 

 hip. — Joule's activity as a Boy 25 



