Ricnarpson— Lines of Flow of Water in Saturated Soils. 805 
Tur Form or THE WATER SuRFACE Is INDETERMINATE BY THIS METHOD 
IN THIS INSTANCE. 
WATERTIGHT SU8&SOIL 
Vv 
LINE OF SYMMETRY 
Fig. 4. 
mean = 0°96 W 
Reciprocal of chequer-ratio 
P eae Sais 071 KGp 
