TABLE Z-5b.-Mine production of recoverable zinc in the United States in 1956 and in 1957 by months 1 1 Revised figures. 2 Based on number of days in the month without adjustment for Sundays and holidays. States east of the Mississippi TABLE Z-5c.-Production of slab zinc in the United States, according to grade1 [In tons of 2,000 pounds] U. S. Bureau of Mines; distilled and electrolytic zinc, primary and secondary. As reported by USBM. Adjusted to include consumption of smaller users not reporting to USBM, plus estimated quantity of recovered from old scrap and consumed in forms other than slab. Estimated: |