Introduction, Hughes and Pride. Part I: Spirometry and Mechanics. Spirometry: Flow-Volume Curves, Pride. Airway Resistance. Thoracic Volumes and Elasticity, Gibson. Respiratory Muscles, Moxham. Part II: Gas Exchange, Control and Exercise. Pulmonary Gas Exchange, Hughes. Diffusing Capacity, Hughes. Control of Breathing, Calverley. Measurement of Breathlessness. Exercise Testing, Morgan. Part III: Applications Outsidethe Routine Laboratory. Sleep-Disordered Breathing, Stradling. Pediatric Pulmonary Function Testing, Silverman & Stocks. Pulmonary Function in the Intensive Careunit, Evans & Macnaughton. Domiciliary Oxygenation and Assisted Ventilation, Simonds. Part IV: Applications Within the Routine Laboratory. Airway Reactivity and Cough, Ind & Pride. Lung Surgery Including Transplantation, Corris. Pulmonary Vascular Disease, Hughes. Interpretation of Diffusing Capacity with Special Reference to Interstitial Lung Disease, Hughes. Examples of Pulmonary Function in Different Conditions, Hughes. Presentation of Pulmonary Function Test Results to the Clinician, Hughes. Glossary