COALFIELDS AM) COLLIKIUKS 



AUSTRALIA. 



GOLD REFINING. 



By DONALD CLARK, M.M.K. 



134 Pages Demy 8vo. Illustrated. 12/6 Nctt. 



"To present the essential points of all methods of gold refining 

 commonly practised, as well as those of historic interest," was the 

 author's purpose in this volume. The fifteen chapters of which the 

 book consists deal with the Simpler Methods of Early Days ; Amalga- 

 mation Process ; Refining with Oxidising and Chloridising Agents ; 

 Sulphur Refining ; Refining with Cementation Processes, and by means 

 of Oxygen and Air ; Miller's Process and that adopted at the Mel- 

 bourne Mint ; Parting with Nitric Acid (two chapters) ; Recovery of 

 Silver from Nitrate Solutions; Refining by Sulphuric Acid; Parting by 

 Electrolysis ; Electrolytic Refining of Gold ; Separation of Platinum 

 from Gold ; Treatment of Cyanide Precipitates ; Refining of Gold 

 Slimes by Nitric and Sulphuric Acid ; the Nitre Cake Method of Puri- 

 fying Slimes. 



THE AUSTRALASIAN 

 JOINT STOCK COMPANIES' YEAR-BOOK. 



By ROBERT LUCAS NASH, 

 Financial Editor of Sydney "Daily Telegraph," 



Author of "Investor's Sinking Fund and Redemption Tables," "Pro- 

 fitable Nature of Our Investments," Eight Editions of 



"Fenn on the Funds" (London), etc. 



500 Pages, Demy 8vo. 1912 Edition. Price, Q/- Nett. 

 A Complete Official Record of all Australasian Investments includ- 

 ing Government and Municipal Loans, Railways and Tramways, Bank- 

 ing, Insurance, Gas and Water, Shipping, Mortgage and Financial, 

 Land and Pastoral, Investment, Brewery, Trading, Manufacturing, and 

 other Companies; as well as Mining Companies of all descriptions to 

 which both Australasian and British Capital has been subscribed. 



ELECTRICAL PROGRESS IN AUSTRALIA. 



156 Pages. Royal 4/0. 2/6 Nett. 



The wonderful progress of the applications of electricity to modern 

 life and industry in Australasia during the past few years has hitherto 

 been indicated in scattered pages of newspapers and isolated articles 

 in magazines ; there has been no attempt to collect the details of electri- 

 cal development into one body? it all times easy of access and refer- 

 ence. That want is supplied in these pages. All the most represen- 

 tative installations, for whatever purpose lighting, power, haulage, or 

 metallurgical work, are here described at length by experts. The more 

 or less complete systems of electric tramways of the several States ; the 

 ever-increasing demands for electric lighting, which come now-a-days 

 from every moderately prosperous country township ; the application of 

 electricity to various purposes in mining operations and in factories, are 

 duly recorded. Anyone wishing to know how much has been done in 

 utilising electrical power throughout Australia will find no other book 

 so comprehensive in scope as this. 



The Critchley Parker Publications. 

 XXI. 



