Beard James Thom

The Ventilation Of Mines. Designed For Use In Schools And Colleges; And For Practical Mining Men In Their Study Of The Subject

Mine Gases And Ventilation

Mine Gases And Explosions: Text-Book For Schools And Colleges And For General Reference

Mine Gases And Explosions: Text-Book For Schools And Colleges And For General Reference

The Ventilation Of Mines. Designed For Use In Schools And Colleges; And For Practical Mining Men In Their Study Of The Subject

Mine Gases And Ventilation: A Reference Handbook Combining Theory And Practice Of Coal Mining, Designed To Meet The Needs Of All Students Of Minin

Mine Gases And Ventilation: Textbook For Students Of Mining, Mining Engineers And Candidates Preparing For Mining Examinations Designed For Workin

Mine Gases And Ventilation; Textbook For Students Of Mining, Mining Engineers And Candidates Preparing For Mining Examinations Designed For Working ... As They Relate To The Safe And Effecien

Mine Gases And Ventilation: Textbook For Students Of Mining, Mining Engineers And Candidates Preparing For Mining Examinations Designed For Working ... As They Relate To The Safe And Effecien

Mine Gases And Ventilation; Textbook For Students Of Mining, Mining Engineers And Candidates Preparing For Mining Examinations Designed For Working ... As They Relate To The Safe And Effecien

The Ventilation Of Mines

The Ventilation Of Mines. Designed For Use In Schools And Colleges; And For Practical Mining Men In Their Study Of The Subject