Soils of the South-Western Districts of the Cape Colony. 147 
———_—— 
(2) 
ga] 2) 8 eels 
Name of Farm and No. 3 ale - bo 4 2 ag 
of Sample. 3 20S AS) g 3 3 2 EI 
Ee | ce 5 = a | 2 
Py 
Field-Cornetcy: Kaffir Kutls 
River 
AUG), lsloxorare) 15H HL ARS ABB conoeeneAeoe Zi9Sn 0S) OL O29 a elOm nl 29 7 0389 
MISOr Mart OUNWVas Csidesersueecnen ese. MO! 43271020) O20 ela ae OLE 
Diviston—Mosseu Bay 
F%eld-Cornetcy : South Mid- 
delveld 
PSV eS UGOlS) DPTEG 5s cyas oesiae ose sms Zoli: 29) | C062 0560) aa ninco wholes 
188. Hartjesfontein ............... 2°99 | 4°87 | 037 | 043 | -23 | -46 | 070 
189. PSF Reet rataiecis sie 45 6:95 | 10°24 | 035 | 17 30) lao a 
Field-Cornetcy : Mossel Bay 
190 Patrystonmterm) Weeacos cc. TS) PROG! | OPIS) jel) "10 =|-13 -| 033 
Here again, as in the case of the clay slate soils, we may fairly 
compare the map with the diagram (Plate XIX.) showing the chemical 
composition of the individual samples, and again some salient features 
are noticeable at the first glance. The Caledon soils, for instance, 
are far the lowest in respect of the quantity of lime contained, the 
average percentage of lime in the 23 soils being only -054, with a 
minimum of -016 and a maximum of :27; in fact, only two samples, 
Nos. 115 and 125, attain to more than ‘1 per cent. This is a very 
much worse exhibition than anything afforded by the Malmesbury 
slates. Passing eastward into the Bredasdorp Division, a consider- 
able improvement manifests itself. The lime rises to an average 
percentage of 174 in the 11 soils of this division, an average 
percentage about five times as great as that in the Caledon soils. 
This percentage is maintained in the western part of the Swellendam 
Division represented by the Field-Cornetcies of River Zonder End, 
Kluitjes Kraal, and Swellendam, the average of 12 soils collected in 
this area being ‘128. The diminution is due to the low lime contents 
of the four soils, Nos. 149, 150, 151, and 152, from the farm Appels- 
kraal. Now these samples, it must be remarked, lie just on the 
verge of the mass of sandstone which forms the River Zonder End 
range, and are apparently influenced thereby. To this influence 
must also be ascribed the poverty in lime exhibited by the Caledon 
soils, lying, as they do, in a tract of country almost entirely hemmed 
in by sandstone. When we reach the Bredasdorp Division and the 
western part of the Swellendam District we emerge from this sphere 
of influence, and the lime becomes less deficient. I have included 
sample No. 160 from the farm Kinko in the western half of the 
14) 
ti) 
