A COLLECTION of the methods in use in the modern laboratories of steel works must be useful if only for comparison, but the present book cannot take rank with standard works such as those by Blair and Arnold. One notes a sameness in the modes of procedure, varied, however, in some instances by questionable modifications, more especially as regards phosphorus determinations. Methods for the Analysis of Ores, Iron and Steel, in Use at the Laboratories of Iron and Steel Works in the Region about Pittsburgh Pa. Pp. iv + 133. (Easton, Pa.: Chemical Publishing Co., 1898.)