CHAPTER VI. 



Efforts to Convince the Scientific World. — 

 Pre-eminence hi Knowledge of PJiysical Science. — General 

 Silence; the HigJiest Tribute to the Greatness of the 

 A dvance. — Friendly Sympathy. — Oakfield. — Researches 

 in Ids New Laboratory. — Rarefaction and Condensation 

 of Air. — Difficulties. — No Latent Heat. — Convertibility 

 of Free Heat into " Work!' — Dynamical Theory of 

 Heat. — Development of Davy's Dynamical Theory of 

 Gases. — New Theory of the Steam Engine. — Criticism 

 of Carnofs Theory. — Heat DiscJiarged into the Con- 

 denser. — Discussion of Results. — foule Ignores the TrutJi 

 of Carnofs Theory. — Indestructibility of Caloric Proved. — 

 Definite Dynamical Theory of Gases. — Imperfect 

 Acquaintance with Mechanical Philosophy. — Absolute 

 Zero of Temperature. — First Determination with tlie 

 Paddle. — Realization of Dynamical Significance of 

 "Work." — Extent of Experimental Work. — ResearcJi 

 wit J i Scores by ; Visits to Bradford. — Essay to the 

 Institute of France. — Research 011 Effect of Magnetism 

 on the Dimensions of Iron and Steel. — foint Research 

 with Sir Lyon Play fair ; Atomic Volumes. 



In August, 1843, Joule is in his 25th year, and has 

 been at work on his research for four years and a half. 

 That he has devoted his whole time to the work, and has 

 had all the facilities an indulgent father could supply, must 

 be allowed, but still the scientific precosity he has displayed,. 



