Show SUMMARY OF DIRECT INDIRECT AND TOTAL OPERATING COSTS PER TON sloping tons labor supplies power total development tons labor supplies power total moving dumps tons labor supplies total transportation tons railroad operation 00 6 railroad maintenance total millina tons labor supplies power total concentrate treatment tons labor supplies power total total direct operating costs total indirect operating costs total costs classification OF development WORK ft drifts and crosscuts Cross cuts at per ft ft raises at per ft ft dinzes at 1947 per ft ft total at per ft ft diamond drilling at per ft additional carbon cost per ft |