Table of Contents Chapter 1 Background to Subsurface Ventilation and Environmental Engineering Chapter 2 Introduction to Fluid Dynamics Chapter 3 Fundamentals of Steady Flow Thermodynamics Chapter 4 Subsurface Ventilation Engineering Chapter 5 Incompressible Flow Relationships Chapter 6 Ventilation Surveys Chapter 7 Ventilation Network Analysis Chapter 8 Mine Ventilation Thermodynamics Chapter 9 Ventilation Planning Chapter 10 Fans Chapter 11 Gases in Subsurface Openings Chapter 12 Methane Chapter 13 Radiation and Radon Gas Chapter 14 Psychrometry: The Study of Moisture in Air Chapter 15 Heat Flow into Subsurface Openings Chapter 16 Simulation of Climatic Conditions in the Subsurface Chapter 17 Physiological Reactions to Climatic Conditions Chapter 18 Refrigeration Plant and Mine Air Conditioning Systems Chapter 19 The Hazardous Nature of Dusts Chapter 20 The Aerodynamics, Sources and Control of Airborne Dust Chapter 21 Subsurface Fires and Explosions