144 Accessory Wetting Substances : Paraffin Emulsions 



being made to roll it was given 1 mark for paraffin wetting, if the 

 paraffin mark was definite, 2 marks and if abundant, 3 marks. 



In the accompanying table the continuous Hne represents wetting 

 by water and the dotted line wetting by paraffin. For the sake of 

 clearness, where the dotted line lies along the zero Une or along the 

 thick hne, it has been raised slightly above. 



Table I 



Tap Water 



Distilled Water 



2r 



1 - 



2- 



1 - 



10 15 20 25 



2 

 1 



2 

 1 



; 

 3 ^ 



2 

 1 



^ I 

 2 I 



-1 



10 15 20 25 



Percentage of Paraffin 



Percentage of Paraffin 



V2 



o/ 

 /o 



of 

 Soap 



