Show WAR REQUIREMENTS IN COPPER AND AD ZINC Considerable Interest attaches to the tho discussion now going on as af to thea the tho a amount lUnt of or copper and zinc required by the tile war says the Mining and ad EngineerIng Engineer Engineer- Ing World Word A writer wrier claims that pounds of ot brass are aro being lost Jost dal dally daily or 5 5 pounds per lor annum through h arm au and artillery fire fre b by the tho Germans and Austrians Roughly speaking cartridge br brass averages about two parts of cOPP copper r to one ono part parl of zinc which would mean for such a consumption pounds of or zinc and ard pounds of or copper per annum to which should bo he added fa say pounds of ot i r r per annum lost en on account of nr riCh rings Ings It I is reasonable to lo t oo that the firing b by the tho allies Is at nt least as great reat as ns b by their enemies On the basis of or estimates of or the tile writer wrier qUo quoted d above and reckoning only the tho same consumption I tion Lion by tho the allies copper and zinc I would bo be under consumption by the l European armies amounting to OOOO pounds of co copper per and ds of or Line Inc per pcr annum This com corn commutation mutation do does not take tako Into account at atall ill all 1 the naval nl na or nr the Italian Asiatic and African campaigns the the- figures for which If I added to th the foregoing would woul represent an aggregate consumption equivalent to considerably over o one one- fourth of or tho the normal annual copper Coppel pi and to perhaps 1 lit li per er cent of the tho worlds world's zinc output output |