Page 



Chapter III. Theoretical Explanations and Experiments 440 



Borelli. Musschenbroeck. Haller. Achard. Brize-Fradin. Halle 

 and Nysten. Poiseuille. 'Maissiat. Hervier and Saint-Lager. 

 Pravaz. Pol and Watelle. A. Guerard. Milliet. Eug. Bertin. 

 Hoppe. Francois. Bucquoy. Hermel. Foley. Caffe. Babing- 

 ton and Cuthbert. Sandahl. Tutschek. Vivenot. G. Lange. 

 Elsasser. Panum. G. Liebig. Gavarret. Leroy de Mericourt. 

 Bouchard. Gal. 



Chapter IV. Summary and Criticisms 489 



1. Physiological action of compressed air. 



A. Phenomena due to compression. 



B. Phenomena due to decompression. 



2. Theoretical explanations. 



A. Phenomena due to compression. 

 Physico-mechanical explanations. Chemical explana- 

 tions. 



B. Phenomena due to decompression. 



Second Part 

 EXPERIMENTS 



Chapter I. Chemical conditions of the death of animals subjected to 



different barometric pressures in closed vessels 505 



Subchapter 1. Pressures below one atmosphere 507 



1. Experimental set-up 507 



2. Experiments : 513 



A. Experiments on birds 513 



B. Experiments on mammals 542 



C. Experiments on cold-blooded animals 550 



3. Conclusions 552 



Subchapter 2. Pressures above one atmosphere 552 



1. Experimental set-up 552 



2. Experiments 555 



A. Compressions with ordinary air 555 



B. Superoxygenated air; pressures between one and 



two atmospheres 560 



C. Compressed air at very high pressures. 



Lethal action of oxygen 565 



D. Compression with air of low oxygen content 570 



E. Compression with superoxygenated air 571 



F. Compression with ordinary air; elimination of 

 carbonic acid 574 



3. Conclusions 577 



Subchapter 3. Summary and conclusions 578 



XXIV 



