other cities as it seems to be in New York, the actual number employed in trades in the twenty-two cities instead of being only 295,450, cannot be far from 1,200,000. With the exception of certain statistics on prostitution, the entire work of the United States report has been done by women appointed by the Bureau, and Mr. Wright bears cordial testimony to the efficiency of each one in a most difficult and laborious task, adding: "They have stood on an equality in all respects with the male force of the Department, and have been compensated equally with them. It was considered entirely appropriate in an investigation of this kind, that the main facts should be collected by women. The wisdom of this course has been thoroughly established." Here, then, for the first time since labor questions began to attract the attention of students of social science, is an aid to stating definitely certain facts hitherto unknown to the public at large, and only surmised by those interested in the subject. Save for the Massachusetts reports already mentioned, and the valuable one of the New York Commissioner, Mr. Charles H. Peck, for 1885, with that of the first report of the Colorado Bureau of Labor Statistics, for 1887 and 1888, prepared under the very competent and careful supervision of Mr. E. J. Driscoll, there has been no authoritative word as to numbers employed, ages, conditions, average and comparative earnings, hours of labor, nationalities, and the many points most difficult to determine.[13] Few but students, however, are likely to read these volumes, and thus a resume of their chief points might find place here were I not limited as to space. Having in mind the injunction of the editor of THE ARENA, to be brief, I shall quote only from the United States report. As all three of the Commissioners named agree in the most important details, except as to numbers employed, the United States report will speak for them all. [13] The Report of the California Bureau of Labor, 1887-8, Commissioner John J. Tobin, should be included, but came after the above had gone to press. In the twenty-two cities investigated by the agents of the United States Bureau, the average age at which girls begin work is found to be fifteen years and four months. Charleston, S. C., gives the highest average, it being there eighteen years and seven months, and Newark the lowest, fourteen years and seven months. The average period during which all had been engaged in their present occupations, is shown to be four years and nine months, while of the total number interviewed 9,540 were engaged in their first attempt to earn a living.