The extension of clinical, endoscopic, and bioptic lung examination proce- dures and function analyses has resulted in more detailed knowledge of the pathology and pathogenetic factors of numerous bronchopulmonary dis- eases. Morphometric, histochemical, ultrastructural, and immunologic ex- amination methods are now constituent parts oflung pathology. This volume, written by numerous experts treats the special subjects of bronchial system pathology, pulmonary circulation, inflammatory and fibrous lung tissue diseases, and borderline areas oflung tumors. With regard to the results, some of which have been obtained experimentally, great im- portance has been attached to the presentation of the applied morphometric, histochemical, immunologic, and ultrastructural investigation methods. The book is intended to improve and extend the discussion between clinicians and morphologists. For the majority of lung diseases, which are discussed in detail in chapters dedicated to the morphological aspects, definitive cat- egorization and assessment of the findings are only possible if clinical picture and disease progress are known. Furthermore, the fmdings documented here, which can be grasped morphologically, provide important indications for the evaluation and classification of syndromes and for prophylactic clinical measures. I would like to thank Professor Grundmann, who initiated this volume, and the contributing authors. Special appreciation and recognition are due the staff of Springer-Verlag for their cooperation and for the organization, printing, and perfect illustration of the contributions. Bochum K. -M. Milller Contents Methods and Results of Postmortem Studies of Airway Dynamics in Normal Lungs and Lungs with Minimal Obstruction. With 11 Figures W. Wierich . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .