Systematic timbering in mines: Fid-Bau Portal

Systematic timbering in mines

Discussion of a movement in England to insist on the systematic timbering of mines, showing that such an order would only increase expense and tend to diminish the safety. (800 w.)

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Systematic timbering in mines

Abstract

Discussion of a movement in England to insist on the systematic timbering of mines, showing that such an order would only increase expense and tend to diminish the safety. (800 w.)

Systematic timbering in mines

Abstract

Discussion of a movement in England to insist on the systematic timbering of mines, showing that such an order would only increase expense and tend to diminish the safety. (800 w.)