THE CAUSE OF DISEASE. 65 



there, and might give rise to the morbid phenomena 

 which characterise fever. 



Since it has been shown that living germs of entozoa 

 a thousand times larger than these vegetable germs 

 may traverse man's textures, and pass long distances 

 through the tissues and organs of his body, until the 

 particular locality suitable for their development into 

 a higher stage of being has been reached, it is im- 

 possible to oppose to this notion of the entrance of 

 vegetable fungus germs any serious objection, at least 

 from this point of view. But at the same time, before 

 anyone who is acquainted with the facts, and reflects 

 carefully, will accept this doctrine, he will desire to be 

 satisfied upon many points which unquestionably 

 require elucidation. It is not sufficient to show that 

 such particles might enter the body in the manner 

 suggested. But it is necessary to prove not only 

 that they really do enter, but that they give rise to 

 the changes in the way which is suggested by the 

 theory in question. If the vegetable germs which 

 have been referred to are indeed the active agents, 

 we ought to be able to demonstrate them, for there 

 is no difficulty whatever in demonstrating closely 

 allied organisms where they do exist, as for instance 

 in the epithelial cells on the mucous lining of the 

 mouth, in which millions can be seen at any time. 



Of the Vegetable Germs actually discovered in the 



fluids and tissues of the higher Animals during Life. 



In every part of the body of man and the higher 



F 



