THE CHEMICAL TRADES. By A. P. LAURIE, M.A., _Principal,
Heriot-Watt College, Edinburgh_, 568
Introductory Remarks--The Le Blanc Process--Alkali Manufacture,
other Methods--The Chemical Worker--Hours of Work
in Alkali Manufacture--The Administration of the Alkali Act--Output
Method of Paying Wages--Bichromate of Potash Manufacture--Coal
Tar Products--Bisulphide of Carbon--Phosphorus--Health
of Chemical Workers as shown by Statistics.