| LC control no. | sh 85015851 |
|---|---|
| LC classification | TD412 Water wells TN281 Mining |
| Topical heading | Boring |
| Variant(s) | Diamond drilling Test boring Well-boring |
| See also | Hydraulic engineering Mining engineering Shaft sinking |
| Scope note | Here are entered works on the operation of cutting holes in earth or rocks, in order to determine the nature of the strata penetrated, or to furnish an outlet for water, oil, or gas. Works on the drilling and boring of holes in metal, wood, and other materials, as carried on in workshops, etc., for construction or manufacturing purposes are entered under Drilling and boring. |
| Subject example tracing | Note under Drilling and boring |
 |  |  |