Federal and State laws relating to convict labor. Letter from the Secretary of labor transmitting in response to a Senate resolution of November 10, 1913, a compilation of all Federal and State laws relating to convict labor, setting forth all legislation regulating the sale and transportation of convict-made products in so far as the same relates to interstate commerce, and information tending to show the effect on free labor of the sale of convict-made goods and data as to the class or description of industries in which convict labor is employed and the value of the products of such labor.