262 Dlt. A. RANSOME ON GRAPHICAL REPRESENTATION 



and the upward and downward track are more nearly 

 alike. 



II. Movements in Disease. 



A few tracings (figs. 18-28) are given to show the effect 

 of disease upon the form of the respiratory curves : — 

 Figs. 18, 19, and 20 are from a female, set. 21 , suffering 



from chronic phthisis on both sides of the chest. Dura- 

 tion 9 years. Fig. 18 is from the least-diseased side, 

 fig. 19 from the third rib over a large contracting vomica. 

 Fig. 20 represents a cough. 



Figs. 21 and 22 are from a male, set. 25, also a case of 



phthisis, but of an acute character, the tracings being 

 taken during an intermission of the disease. 



Fig. 23 is from the right third rib, and fig. 24 from the 

 left third rib, in a male subject of chronic phthisis, in 

 whom the left side was chiefly affected. His age was 35, 

 the duration of the disease 4 years. 



