396 
Transactions of the Royal Society of South Africa. 
i 
In. 
5-41 
5- 50 
9-74 
610 
6 97 
6- 32 
6-67 
13 06 
18-59 
17-25 
21-22 
13-67 
14 03 
13 69 
12- 96 
1366 
13- 03 
8-23 
17-57 
17-64 
10 30 
16-53 
1476 
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411 III , iiiiiiiiiiii III 
1 
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