Show le leaching ac hing eliminates resource waste Emph emphatic atlo testimony that none ot OE resources tiro aro being was wasted ted can be ba had from the tha operation 0 the tha ohio copper company ot at utah at hera the company la Is winning croper copper from the earth that Is too low law grade to be mined in the usual manner years ago the ohio copper company mined copper ore at dingham by the orthodox ot of tunnels and drifts through the underground in mining the richer ores the company was forced to leave a vast amount ot of low grade disseminated through the rocks that would not bear the expense ot of mining the property was not adaptable to th the open cut methods so BO a process ot of leaching was applied using the old workings to collect copper in solution water was waa Aprin sprinkled kleI on the surface to add to the normal supply provided by rains and snow after the water has percolated through the masses ot of low grade ore it has picked up a certain amount of 0 copper in the old underground workings tanks have been installed that isatel catches os a certain amount ot of this ft ater in these tanks la Is placed a said amount of scrap tin which acts to attract the copper from the water rater the copper thus attracted toon soon turns the tin to copper and atter after the copper Is taken from the water it la Is pumped tack back to the burlace and permitted to percolate lown iowa through the ore again tho the system ot of precipitating copper from water which washes through liro u gh copper deposits la Is a common practice but ohio copper la Is the lie only place where it la Is known io to be mined underground precipitation is said to have been lisco discovered Sis covered verea by a miner living near i stream which flowed through a topper copper deposit tin cans that he ha discarded lis carded into the stream were soon tur turned aed to copper and unknowingly iia had discovered a process which was ivas to play an important part la in the production nt at property and the tha on of 0 our Dur resources ill tees tor for the troops troop 0 occupation the aids to veterans anil and their families an and d the help tor for hospitalized servicemen the red bed cross no not t only sorves our I 1 men in uniform it also carries on an extensive program of 0 health and safety education at home and stands as a safety bulwark against disaster disastrous ous floods tire fire and accidents |