INDUSTRIAL AND TRADE NOTES: A British Radium Discovery; Powdered Sugar Cane; Briquetting of Iron Ores; Potash Salts in Galicia; Smelting by Electricity; Petroleum Oil Gusher; Purchase of Iron Mines; Monazite and Zircon Production; Mine Rescue Service; Mexican Cement Plant; Cement from Blas Furnace Slag; Germany's Potash Deposits and Mines.