66 
Transactions of the Royal Society of South Africa. 
of blue ground that experts can with [out] difficulty determine not only 
from which mine, but from what portion of the mine, a particular 
parcel of stones has been derived." (P. Wagner, ' The Diamond Mines 
of Southern Africa,' p. 149, 1914.) 
We propose first of all to amplify these three statements, and to 
illustrate them as far as it is possible to do so. Further references to the 
volumes in which they are contained will give the pages only, the titles will 
be understood. 
Below are given representative assortments, in percentages, of parcels of 
diamonds from jthe Bultfontein, Wesselton, and Dutoitspan mines. Eepre- 
sentative assortments for De Beers Mine, and for Kimberley Mine, 
separately, cannot well be given, since in the days when these two mines 
were in full swing the produce of the two was mixed together before being 
sorted. A specimen Pool assortment (as it is called) of De Beers and 
Kimberley diamonds mixed together is, however, given. 
1. Representative Ai^sortment of Bultfontein and Wesselton Diamo7ids, in 
Percentages. 
Bultfontein. 
Wesselton. 
Size of Parcel . 
70,208 cts. . 
59,600 cts. 
A. Close Goods. 
Per cent 
Per cent. 
Blue Whites 
•02 
•30 
Fine Whites 
2-06 
2-64 
Whites 
•55 
116 
First Capes 
•31 
101 
Second Capes 
•06 
•30 
Byes 
•03 
•03 
Yellows . 
•03 
First Fancies 
1-20 
Second Fancies 
•60 
B. Irregulars. 
Whites . 
2-85 
3-21 
Capes 
•24 
•71 
Byes 
•09 
•02 
Yellows . 
•01 
C. Spotted Stones. 
Blue Whites 
•02 
•35 
Whites . 
2-84 
1-92 
Capes 
•68 
•66 
Byes 
•11 
Goods 
•85 
Grood Capes 
2-28 
•19 
