Hele-Shaw & Hay. 
Phil. Trans., A., Vol. 195 , Plate 14. 
\\ 
9 
Theoretical Diagram for Infinite Elliptic 
Cylinder placed in uniform field. 
Ratio of axes 3:1. Permeability= 100. 
10 
Stream-line Diagram corresponding to 
theoretical Diagram of Fig. 9. 
