TABLE OF CONTENTS 



i'Af;i. 



Introduction 337 



Pulmonic Connective Tissue and Its Pneumatization ggy 



Human Pulmonic Interstitial Emphysema (PIE), Pneumomediastinum, 



etc 339 



Movement of Air Bubbles Toward the Mediastinum 340 



Airblock and Its Effects 340 



The "Splinting" of the Lung by Incarcerated Air 342 



Natural Relief of PIE 342 



Mediastinal Emphysema and Its Alleviation 343 



Animal Experiments 344 



Forcible Overinflation of Part of a Living Animal's Lung 

 Forcible Overinflation of Entire Fresh Lungs 



Analogies in Human Chest Pathology 346 



Atelectasis 

 Contributory Causes 



Survey of the Literature for PIE and Its Sequelae 348 



Chest Conditions Probably Showing PIE and Sequelae, from Local 



Alveolar Overstrain 348 



Atelectasis Neonatorum 

 Autoresorption of Aberrant Air 

 Why Aberrant Air Escapes Attention 

 Interalveolar Pores 

 Hereditary Predisposition 

 Local Alveolar Overstrain 



PIE from General Alveolar Overstrain 352 



Natural Overstrain Cases 



Abrupt Decompression 



Artificial Overstrain Cases 



Lung Blast 



Intratracheal Anesthesia and Artificial Respiration PIE Cases 



Miscellaneous Cases of PIE 358 



Rupture Sites 359 



Prevention, Diagnosis and Treatment 360 



Summary 361 



Final Note 365 



References 366 



[335] 



