The Occurrence and Distribution of Diamonds in India. 589 
mines under European management, have hitherto failed. These 
failures may have been due to causes with which the conditions | 
have above alluded to, have nothing to do, they may have resulted 
from simple incompetency, death, or sickness, &c. 
My colleague, Mr. King, in writing of the South of India mines 
says, that it is not to be expected that diamond mining would, 
except by a mere chance, prove a rapid road to fortune. But for 
those content with a slowly paying occupation and a hard life, 
involving close personal supervision of the workers, it would pay, 
provided such persons possessed capital sufficient to last them 
some years. 
NOTE ADDED IN THE PRESS. 
I hope shortly to publish a paper on the correlation of the diamond 
deposits of the world. I think it advisable to attempt the task, since 
much that has been founded on erroneous data as regards India has been 
printed in connexion with accounts of Australian and African diamonds. 
Thus the late Rev. W. B. Clarke spoke of the diamond-bearing Banagan- 
pilly strata as being of Mahadeva age.* Others have supposed that the 
diamonds of India were connected with the Dekan basalt. 
* Anniversary Address, Trans. Royal Society of New South Wales, 1870. 
