Page:Walter Renton Ingalls - Current Economic Affairs (1924).pdf/107

Rh In the instance of some commodities, the metals especially, there is a good deal of use for the domestic manufacture of goods that are subsequently exported. Statistically this is commonly reckoned as a domestic consumption. Of course it should not be so reckoned theoretically, but in general the available data do not enable the statistician to go any further. My own computations are made in conformity with this general statistical practice, except that in the instance of copper deduction is made of our exports in the form of rods, wire, sheet, etc., which deduction gives us more nearly the domestic consumption of this metal. Our exports of zinc and lead in manufactured forms are relatively small, but our exports of manufactures of steel are large.