Show MONTANA MINES HOLD OV N DESPIE OBSTAClES I Montana mines made a large larAe output I of silver siver copper and zinc during the i first six months of 97 despite despie the I fact they were delayed to some extent by the severe winter and by fire In Inthe In I the mines at Butte Bute As the six months months' I period closes a labor strike threatens to I coseR Interfere with wih the years year's r record The copper production of the the- the first four months In 1917 1911 as reported to V. V C. C Heikes of the Salt Lake office of the United States geological survey department of the Interior shows a decided decided de de- increase over the corresponding period of 1916 The total output for 1916 was estimated at pounds Next In Importance Is is the silver output which Increases or decreases with wih the production of copper In 1916 the pro pro- ducton of silver was about pro pro-I ounces The Anaconda Copper compans compan's com com- pans pany's smelting plants were averaging pounds of copper monthly during dur dur- ing Ilg the first four months of 1917 and I the East smelter pounds Each of these e establishments had higher averages In certain months and may Increase their output materially before the end of 1917 I The estimated quantity of ot recoverable zinc p produced in the state ta during 1916 was about 00 00 pounds u With nl I Ithe I Ithe the increase in the number of shippers I Ito I to the he electrolytic plant this record may l he e exceeded in 1917 At the Butte I Superior the output of the first quarter t was n not up P to the l e average of 1916 owing I Ston Sto to shaft l a SI sinking d a and Je changes I I in flotation equipment equipment The monthly average a was pounds of oC zinc I In concentrate concentrate against about pounds in 1916 For several years the I largest zinc producers were the Butte I Superior and Elm Orlu mines In addi addition tion ton to these mines the Emma Lexing ton and Davis Daly ire are I now large lare shippers shippers ship ship- pers to the Anaconda zinc concentrator |