PART II. 



AN ACCOUNT 



OF 



SEVERAL NEW EXPERIMENTS, 



WITH 



OCCASIONAL REMARKS AND OBSERVATIONS. 



AND 



CONJECTURES 



RESPECTING CHEMICAL AFFINITY AND SOLUTION, AND 

 THE MECHANICAL PRINCIPLE OF ANIMAL LIFE. 



CHAPTER I. 



Account of a Circumstance of a private Nature^ by which 

 the Author has been induced to add this and the following 

 Chapters to the Second Edition of this Essay. — Experi- 

 mental Investigation of the Subject continued. — Oil 

 found by Experiment to be a Non-Conductor of Heat. — 

 Mercury is likewise a Non-Conductor. — Probability 

 that all Fluids are Non-Conductors, and that this 

 Property is essential to Fluidity. — The Knowledge 

 of that Fact may be of great Use in enabling us to form 

 more just Ideas with regard to the Nature of those mechan- 

 ical Operations which take place in chemical Solutio7is and 

 Combinations^ in the Process of Vegetation^ and in the 

 various Changes effected by the Powers of Life in the Ani- 

 mal Economy. — Rapidity of Solution no Proof of the 

 Existence of an Attraction of Affinity. — Strata of fresh 

 Water and of salt Water may be made to repose on each 

 'other in actual Contact without mixing. — Probability that 



VOL. I. 22 



