Chicago: American Technical Society 1923. , 529 pages. Black flexible cloth binding with gilt spine lettering. Volume 7 ONLY of an eight volume set. Very Good. Wraps. 
Contents include Power Stations by George C. Shaad, Switchboards, Switching and Protective Apparatus by C.C. Adams, Management of Dynamo-Electric Machinery by F. B Crocker and C. C. Adams, and Welding by George W. Cravens. At the end is a section titled "Review Questions" followed by the index.
A series that went through many revisions over the years. The more common perhaps is the set in red cloth bindings from 1906. A useful reference for anyone interested in the topic.