110 Dr. W. Marcet. 



of its normal figure ; by prolonging the experiment this figure was 

 recovered, or very nearly so. 



The following is a list of the curves on the charts which accom- 

 pany this paper : 



Forced Breathing. 

 The Author. Normal, forced, and reaction. 



Breathing under Exercise. 



The Author, I. Normal, exercise, and after stage, and forced to 



compare with exercise. 



Mr. Floris, 2. Normal, reading aloud, and after stage. 

 ,, 3. Normal, laughing, and after stage. 



Breathing under the influence of the Will. 



Mr. Floris, 1. Normal, will, and after stage. Forced breathing 



to imitate will and after stage. 

 The Author, 2. Normal, will, and after stage, exercise and after 



stage. 



