ANNIVEESAEY ADDEESS. 15 



The literature of the subject is, therefore, already considerable. 



On this occasion remarks on the subject must be of a very 

 general character, but the titles given will enable inquirers to 

 seek information in the works themselves. 



It is however satisfactory to myself to be enabled to introduce 

 here a copy of a note appended to Professor Jones's paper. " I 

 must add, that a great store of useful information about the 

 diamond and the geology of the diamond fields in Australia, 

 India, Brazil, and elsewhere, has been brought together by the 

 Eev. W. B. Clarke, &c., in his Anniversary Address, on May 25, 

 1870." 



The brief account which was given by me in that Address of 

 1870 was prepared at a time when the first opening of the 

 diamond field had been just reported. In the copy published 

 since, a note is added, making the paper exhaustive up to 18th 

 November, 1870. In that note is given a statement of the 

 amount of diamonds then shipped for England. Mr. Jones 

 differs a little in his abstract returns from the quotation I copied 

 from the only available source of information in my power. What 

 appears tolerably certain is this, — that in 1869 the value of exported 

 diamonds was £7,405, and up to 29th December, 1870, the 

 value of such exported diamonds was £124,910 ; making the 

 produce upon which wharfage was paid, £132,315. Up to Feb- 

 ruary, 1871, it amounted to £146,765, all from Port Elizabeth 

 alone, whilst from all ports of South Africa the amount in 1870 

 was £220,000. 



At present the area is limited, but diamonds have been found 

 on the Vaal Eiver over an extent of 370 miles. 



Mr. Dunn says, the first diamond on the Vaal Eiver was found, 

 after three months preliminary search, on the 7th of January, 

 1870, and the first diamonds found at Du Toit's Pan and 

 Bultfonteia were picked out of the mud plaster covering the 

 walls of an outbuilding in the latter place in 1869. 



