CJ? 



CONTENTS. 



INTRODUCTION, 



1. STATES OF MATTER, . , ; C- . --.- 



CHAPTER I. General Distinctions between Solids, Liquids, 

 and Gases ; Nature of Physical and Chemical Actions 

 involving Change of State, or Passage from one Con- 

 dition to Another, .. . . . 



General characters of solids, liquids, and gases, . 

 Malleability, ductility, elasticity, softness, viscidity, &c., 

 Plasticity : pottery and preparation of clay crucibles, 



&c., . . . . '. 



Simple heating apparatus : Bunsen lamp : spirit lamp, . 

 Moulding, casting, and taking impressions in wax. 



plaster, gutta-percha, &c., ' \ . . 



Cohesion and adhesion, . . . . . 



Changes of state produced by variation of temperature 



and pressure, , . . 



Changes of state produced by causes involving chemical 



action, . . . . . 



Combination, decomposition, and displacement, 

 Precipitation, 

 Solution and separation from solution, . 



2. PHYSICAL CHANGES OF STATE DUE TO HEAT AND PRESSURE 

 AND NOT ACCOMPANIED BY CHEMICAL ACTION, . 



CHAPTER II. Fusion of Solids and Solidification of Fluids, 



Differences in fusibility, . . . . 



Preparation of castings, . . . ,. 



Granulated metals, . . . . , 



Effect of sudden chilling : explosive glass, . 



Crystallisation from fusion during solidification, 

 Mixtures of metals melting under boiling water, 



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