Northumberland and Durham

Any person observing any door standing open that ought to be shut, or stoppings injured, or any other thing whereby the ventilation of the mine or its safety in other respects may be affected, is immediately to inform the overman, deputy, or other person in charge of the pit, so that there may be as little delay as possible in applying a remedy.

No person acting in a place of trust to depute any one to do his work without the sanction of the viewer.

No swearing or fighting is allowed in the mine.

No ale or intoxicating drink is allowed, on any pretext, to be taken down into the mine.

Where a barometer or thermometer (or both instruments) is kept underground, it is the duty of the overman to observe and adjust the same immediately after descending the pit in the morning, noting the observations in a journal to be kept for that purpose. If the mercury has fallen during the night, particular care must be directed towards those parts of the mine which contain gas, more especially the goaves and goaf edges ; and should any extra quantity of gas be observed, either in these or in other situations, the precautionary and remedial measures provided under the heads of firedamp and safety-lamps must be properly attended to.

The back overman will observe and adjust the barometer (or barometer and thermometer, as the case may be) as his last duty before leaving the pit, and will enter his observation in the journal before mentioned.