20 THE LAWS OF ORGANIC 



character depends which knowledge, I regret to 

 say, has not hitherto been possessed by the medi- 

 cal practitioner ; the approaches which he has 

 made have been made by means of empiricism, 

 which occasionally teaches what is right, but too 

 often misguides by its fallacies. 



XXVI II. Having explained, and, I hope, 

 established these principles, we proceed now to 

 illustrate them more fully, by a variety of other 

 applications. Since the lungs are subject to 

 great variations in the quantity of blood which 

 they receive, and since these variations influence 

 the generation of animal heat, we may state the 

 following laws as universal : 



1. That, in every case, in which inspirations preponder- 



ate, either in number or completeness, the pulse will 

 be small, weak, and for the most part frequent ; the 

 surface and extremities of the body pale or collap- 

 sed, and the temperature of the system less than in 

 the regular action of the two states of respiration. 



2. In every instance in which expirations exceed inspira- 



tions, either in number or completeness, the pulse 

 will be strong and frequent, the surface and extremi- 

 ties of the body florid and full, and the temperature 

 of the system higher than natural. 



3. The influence of cold upon the surface of the body 



will diminish the generation of animal heat, accord- 

 ing to the degree of congestion produced in the in- 

 ternal viscera. 



4. The influence of heat applied to the same parts, will in- 



crease the temperature of the body, according to the 



