Page 



A. Vaccine 846 



B. Glanders 847 



C. Anthrax 847 



Subchapter 5. Summary 849 



Chapter VII. Effects of sudden changes in barometric pressure— . 852 



Subchapter 1. Effects of sudden increases in pressure 852 



Subchapter 2. Effects of sudden decreases in pressure beginning 



with one atmosphere 853 



Subchapter 3. Effect of sudden decrease in pressure beginning 



with several atmospheres 859 



1. Decompression without interruption 859 



A. Experiments on sparrows 859 



B. Experiments on rats 861 



C. Experiments on rabbits 861 



D. Experiments on cats 861 



E. Experiments on dogs 863 



2. Slow decompression in several stages 874 



3. Summary and conclusions from the preceding experiments 878 



Subchapter 4. Prophylaxis and treatment of the symptoms of sud- 

 den decompression 890 



Subchapter 5. Summary 895 



Chapter VIII. Various questions 896 



Subchapter 1. Action of carbonic acid on living beings 896 



1. Lethal tension of carbonic acid in ambient air 896 



2. Lethal concentration of carbonic acid in the blood 899 



3. Accumulation of carbonic acid in the tissues 910 



4. Symptoms and mechanism of carbonic acid poisoning 914 



5. Action of carbonic acid on lower living beings 924 



6. Summary and conclusions 927 



Subchapter 2. Asphyxia — 928 



Subchapter 3. Observations on the gases of the blood 935 



Third Part 

 RECENT DATA, SUMMARY AND CONCLUSIONS - 947 



Chapter I. Decreased pressure 949 



Subchapter 1. Observations, theories, and recent discussions 949 



Bouchut. Chabert. Dufour. Forel. Thorpe. Tempest An- 

 derson. Calberla. Ward. Vacher. Croce-Spinelli, Sivel and 

 G. Tissandier. Stoliczka. Campana. Jourdanet. 



XXVII 



