83 
THE ROOT 
PLANT AND SOIL 
ci 
N= 
nl 
s z& 
z : 
U2 : 
‘ ax. z 
F) 
YF = 
ome | - 
“YP ey 2. 
Ws 
Q 
w = Fa ‘ = SS rT Fon E 
2 li ax re ‘5 
i= uO : $3 
yp « ie Z c 
i) tu mw Ww & = 
Wi yn 9 8 a 
Zz ew ce 
e fe) Z Oo Z : 
o oO ©f£ 5 z 
le) 
Li 
MECHANICAL 
ANALYSIS OF SOIL 
FIG.53 
