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2~~~ <br /> <br />„ ? r, ;; - S'II R'F A C E ' ':P L A ft T -'Contin.: <br />:The' Dollar 'oY 'the • ahait Y'e eY euPtioient' height~~te pre- <br />vent paraexs; iromf•tripping. end Balling im•the 'abaft 'sand. Ta pro- <br />vided with` good. gable domra"to preVent:materlal 'irom~'iolling'ia <br />the ahatt:while dumping; :• <br />fto work Se done'at night... .. . <br />E% P ~E O S I Y E S. <br />6elatiae powder - 40~; Oerinan' Ineoloid"Yuae! b-R~ Daps and <br />wooden tamping bare are eaployed:°Esplseives'in`exoeee `oi one <br />day'e.eupply are not;atored miderground:' <br />The average amount o3 explosives kept in"storage i'a 10$ <br />and•this is kept in the ehaTt~houee~ae there ie"nb'plaoe for e <br />magazine outpide'e3.the building pn-aoooimt of,ite proximity to <br />dwelling houses. `~~~` <br />The dsvioe ier thating powflor 1s:a tin tank heated with <br />hot water. <br />M I ft I ft 0 8o M I ft E METHODS . <br />The ma1A'opening ie s.ahai't ubout:47b' deep. Thie~ehaft <br />has been oleaxod out axd'rptdmbered to a°depth~e3 136' and the <br />remainder of the.sha~t~will~:be•reldeved ei'water and debris ae <br />rapidly as possible but~until.euoh-time nothing ia,knewn of a- <br />mount of development dexe. The ehait has been oribbad with 4' <br />x 8' timbers Yor n dletanoe of 76' from the euriaoe and below <br />this point atulls~baoked `with lagging are used. <br />The shaft ie divided into two oompartmente; eaoh 4' x 4', <br />and the.ladder-way ie:snudpped with eafo, aeoure and`•aooeeeible <br />lafldera, oentaino no pipo^ tor'a1r, sto. and hae'lnndinga 20' <br />apart. , •u, n n ' ~ , ~, , • ~. . <br />Aotive work oarriod on at this tlme Se do the ehait at a <br />depth of 136' and osxelste of retimbering and olaaning out de- <br />v , <br />br1a. <br />i ,, <br />'I <br />~ I <br />~,; <br />'L <br />An additional exit will be~provided'As eoon'aa'poeeible. <br />