|
?19
<br />Bride Tun. - 6.
<br />
<br />}S I•A I A,G- & .MINE METH 0 D S - Csntin. ~.;~;
<br />~ ~
<br />'~'
<br />'
<br /> j
<br />;71
<br />The system •P ventilation is natural and no aoxioue gases i~~}
<br />~~ I
<br />are .mat with. 4entilation.ia auttioiept., ~
<br />~
<br />~
<br />The sanitary oonditione are good,and all old timbers and l
<br />'L
<br />~,.
<br />debris have boon removed Yrom underground. ~,~'S:,
<br />i•,I,
<br />Tho eha~t it divided into tyro oompsrtmet}ta. Ono aompart- ', ~ ,I;
<br />;~
<br />ment is 2ir' x 2~' in the olesr axd is uaed Yer,a ladder-way. ~ ;~il'
<br />The other oompsrtment is 4~' x 4$' in the o],ear and is uaed 3or ~ , j'l'I`~
<br />I~
<br />a buokot-way. Tho laddor-hay oontaiae sir sad v~atar pipoa, is
<br />~
<br />~ ~!:
<br />1
<br />equipped-with-sato~-esoure and aooeeeibl,e laddera_but hsa no
<br />. .;.
<br />1~1
<br />~,iC
<br />landiags. ... ~ ' '
<br />1.
<br />Csadlo~ aad oarbido lsmpe are uaed for lightixg under- ~
<br />I
<br />I ~'
<br />1
<br />ground.
<br />~ ~~
<br />~, '~?i
<br />3 T A T 13 T I C S (~i,
<br />~
<br />
<br />Groea tonnage not given. I
<br />j ~ .I,
<br />~~;
<br />l
<br />~~
<br />Average tonnage per. month, 200.
<br />~
<br />i
<br />~
<br />,;
<br />Average .value of ore. per .ton, ?~15.
<br />.
<br />,
<br />
<br />Cost psr.tox mining of oro, ~1. i
<br />I
<br />'!
<br />I,
<br />Caat der ton .trsnaporting ors, 40~ ~
<br />~ I 'F'
<br />
<br />Coet,per ten treatment •t milling oro, !1.50.
<br />
<br />' ~
<br />~
<br />! ~I
<br />,.
<br />'~r
<br />
<br />Cast per-tea treatmext,ot smelting are, $7.
<br />
<br />, I
<br />I ,
<br />I,
<br />I.
<br />Coat of powder per month, X200. i
<br />{ ~
<br />III,
<br />n ° timber " ° 100.
<br />
<br />I(
<br />111
<br />~ `.
<br />,I
<br />'
<br />n „ power " " 200.
<br />.- ,~ ~,
<br />~, I.
<br />n n steel n ° 2b. I I ~~I
<br />a ~ n oil ° n 6.
<br />I'I
<br />" " traneportiag supplies to mine inoludod in atiow. ,i~,~,~ii~
<br />I~ ~~,
<br />Total somber of foot is shafts, 3,000. I,I~~I,;IIi~
<br />„ n n „ tunnels and edits, 10,000. I~~;~~`J
<br />~
<br />„ ~~
<br />n n u ~~ n dri3ta, •1.000. ~
<br />
<br />
|