Principles of Mining: Valuation, Organization and Administration

by Herbert Hoover

Flat-back stope, [98], [100], [110].

Flexibility in drainage system, [138].

Floors, [31].

Folding, [23].

Foot-drilled system of contract work, [166].

-hole system of contract work, [166].

of advance system of contract work, [166].

value, [10].

Fraud, precautions against in sampling, [7].

General expenses, [173].