84 



DISPERSE SYSTEMS 



Analyses of natural and artificial emulsions, like milk, bile, 

 rubber, cod-liver-oil emulsion, etc., demonstrate the presence of 

 more than merely oil and water. A colloid or semi-colloid must 

 be present. 



TABLE XV. 



If the generic term oil is used to denote any liquid that is not 

 miscible with water, we may note that there are two entirely 

 different types of emulsions, the one being drops of oil suspended 

 in water and the other being drops of water suspended in oil 

 (cf. emulsoid sol and gel). For example, milk belongs to the 

 former and butter to the latter class. It is important to know 



