A Documentary History of American Industrial Society. Edited by John R. Commons, Ulrich B. Phillips, Eugene A. Gil-More, Helen L. Sumner, and John B. Andrews Prepared under the auspices of the American Bureau of Industrial Research, with the co-operation of the Carnegie Institution of Washington. With preface by Richard T. Ely and introduction by John B. Clark. Volumes VII., VIII., IX., and X. Labor Movement. (Cleveland, Ohio: The Arthur H. Clark Company. 1910-1911. Pp. 364, 346,379,370.)