Diamond-drilling, [93].
Diluting narrow samples to a stoping width, [11].
Dip, [89].
Direct-acting steam-pumps, [140].
Distribution of values, [30].
Dividend, annual, present value, [46].
Dommeiler, [145].
Down holes, [100].
Drainage [138].
Diamond-drilling, [93].
Diluting narrow samples to a stoping width, [11].
Dip, [89].
Direct-acting steam-pumps, [140].
Distribution of values, [30].
Dividend, annual, present value, [46].
Dommeiler, [145].
Down holes, [100].
Drainage [138].