110 THE BIOLOGY OF DAILY LIFE. 



the surface, it is Nature's effort* to expel the 

 blood poisons in a mass, and should not be 

 repelled but assisted, otherwise re-inoculation 

 will be the consequence." 



TWO PRINCIPAL CLASSES OR KINDS OF PUS MATTER DIVIDED 

 ACCORDING TO ITS ORIGIN AND EFFECTS. 



"Pus matter proper is distinctively to be 

 divided into two classes or kinds. 



" The first kind is that which is engendered 

 de novo, by the stomach receiving into it, for 

 the purpose of digestion, partially decomposed 

 or fermented foods and drinks in which yeast 

 forms an active, living element. These yeast 

 animalcula (the younger or smaller broods par- 

 ticularly) insinuate themselves readily into the 

 capillaries, and pass into the life current. . . . 

 The yeast lives at the expense of the blood 

 proper, and thus establishes itself in the human 

 organism as the physical basis of death. This is 

 the l white corpuscle' of physiology. 



"The second kind of pus matter is that 

 which has been hereditarily transmitted from 

 diseased parents, or acquired during life from 

 direct inoculation by means of vaccination or 

 other forms of blood-poisoning. The yeast 

 germs are, in these cases, consequently older 

 and more degraded, from their having been 



*It is interesting to compare with this quite independent 

 observation direct from Nature's teaching the wise anticipation 

 of Sydenham " nihil aliud quam, Naturae conamen" (see title- 

 page of this book). 



