total figures also coal conies second, gold easily heading the 

 list with a value of 514,000,000, the value of coal won being 

 67,000,000, that of copper 54,000,000, that of silver about 

 45,000,000, that of tin 28,000,000, and that of lead about 

 16,000,000. Although 89 per cent, of the entire Australian 

 coal output has come from New South Wales, and although in 

 1909 its percentage of the output was as much as 85, it is yet 

 evident from these figures that coal production plays a most 

 important part in the mining business of the whole of the con- 

 tinent. The subject is, therefore, a big one, and I know no 

 one better fitted to deal with it in the full equipment of a com- 

 plete knowledge of his subject than the author of this book. 



Mr. Frederick Danvers Power, who is a Fellow of the 

 Geological Society, a member of the American Institute of 

 Mining Engineers, of the Institute of Mining and Metallurgy 

 (London), and of the Australasian Institute of Mining Engi- 

 neers (of which he was President in 1897 and 1904), received 

 his scientific education in Swansea, London, and Glaus thai, 

 and has supplemented all he learnt there by much travel in 

 various parts of the world. He came to Australia in 1884, 

 and has since had his residence in this country. For some 

 time he made Melbourne his headquarters, but later he 

 took up his residence in Sydney, where he became Lecturer 

 in Mining at the University a position which he still holds. 

 He is widely known as the author of a very handy "Pocket- 

 book for Miners and Metallurgists," and of many papers on 

 scientific subjects, a number of which have been printed in 

 the "Australian Mining Standard." He acts as consulting 

 engineer for English mining and exploration companies, and 

 has a wide reputation for sane judgment and for the "con- 

 servative" character of the estimates he forms. This work 

 will hardly fail to add to his reputation as a keen judge of 

 mining methods, and a thorough master of his subject. 



ED. Aus. Mining Standard. 



VI. 



