Vol. I. of this series was devoted to a consideration of the early history of blacksmithing, together with shop plans and improved methods of constructing chimneys and forges.
Vol. II. was, for the most part, given up to a consideration of tools, a great variety of which were described and illustrated.
In Vol. III. the subject of tools is continued in the first and second chapters, after which the volume is devoted chiefly to a description of a great variety of jobs of work. This volume is, therefore, in many respects, the most valuable thus far of the series, as it shows how the improved tools described in Vols. I. and II. can be used practically.
Vol. IV. will continue the topic of jobs of work and complete the series.