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mining
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A letter to a commissioner of the inland navigation : concerning the Tyrone collieries
Report of the Hollidaysburg and Bennington Railroad & Mining Company
Report to the directors of the Pequa Railroad and Improvement Company
Pequa Rail Road and Improvement Company : act of incorporation, by-laws, &c
Some notes on the bord-and-pillar system of work
Gobbin quarry and railway at the Saint-Etienne collieries
South African rope and safety-catch commission
Magmatic segregation in its relation to the genesis of certain ore-bodies
State provisions for location of lode claims
Mineral resources on Kansas City, Mexico and Orient railway