Show I The Tariff Laws I V WASHINGTON f July 18 Secretarj Manning has prepared and is sending out V a circular letter to manufacturer and others interested in industrial arts stating that investigations prove that the tariff laws are largely evaded bS undervaluation He asks them to give their views as to tne feasibility of simplifying sim-plifying the tariff and changing ad valorem duties to specific The mfor maCon is sought to be laid before Congress Con-gress and as an aid in the improvenlen in the customs system Inf9rmation is i also asked as to the relative cost p manufacturing in this country and in Europe V |