ins.Roy.Soc.S.Afr. Vol.1. 
; 
Plate XIX. 
-• 
j 
1 
1 
1 
— 1_ 
1 
1 1 
i 
1 
— 1 
-J 
Diagram illustrating soil 
alkalinity at Van Wyks Vlei, 
Carnarvon Division. 
1 
\ 
A 
— 
— 
t 
ih 
1 
/V 
0 
D 
ept 
h 
•/ 
— ( 
% 
•% 
•3 
— - 
■4/0 
■.i 
% 
■7% 
% 
■9 
% 
I- 
I- 
1% 
p% 
/•( 
I- 
9% 
I- 
21% 
a- 
«>• 
a- 
,% 
i 
in 
flC 
fiei 
1 
1 ■ 
-7 
6 
u 
1 — i 
1 
r- 
4 
12 
la 
1 
i 
ih 
m 
tl 
on 
• 
/ 
Total soluble salts ' (f 
^und 
) 
-i— 
J 
f\ 
— 
Sodiun 
( rs It'll la fori 
1 
u 
\ 
/ 
7 chloride^ 
J — 
-7 
3- 
30 
/ 
t 
-4- 
_ sulnh^ 
f\ 
... 
\ „ l^suijilio 
..Msanesium ci 
natfi 
38 
1 
tloride 
K 
'> 
.. _ sulnhatp 
j 
— 1 — 
s 
L carbonate 
4S 
-Vt 
Calc 
um chloride. 
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i 
suiohate. 

St 
a 
oar 
bona 
fe. 
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-y 
-A. 
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66 
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1 
West.NetvTTtaj^ Uth. 
1 
