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Rh on statistical method; and Miss Alice E. Roché ably directed the stenographic work. While, therefore, the present study is published under one name, it is, in reality, the product of several persons, all of whom played a part in the production of the work. I therefore take this occasion to thank them, and to say that they deserve a large measure of any credit that may attach to this product of our cooperative effort.

Unfortunately, this cannot prove a companion study to the Chapin Investigation. The New York Bureau of Labor publishes the wages of union members only, and even this incomplete data is not in a form available for such a comparison. Nevertheless, the evidence here adduced is of a nature to warrant the conclusion that a large portion of American workmen are unable to maintain an efficiency standard of living, and to justify such early steps as will result in the presentation of more complete wage statistics. While the conclusions here set down are by no means final, they are based upon such statistical proof that they must stand until overthrown by additional studies.

March 30, 1911.