THEIE NAME 5 



are animals. The Texan Fever which destroys so 

 many cattle is also caused by an animal germ. 



How many more disease-producing germs, both 

 as regards man and the lower animals, may be 

 found to be animal, we know not. Nor do we know 

 how many of that countless number of these in- 

 visible beings which do not produce disease, may 

 yet be found to be animals. 



Therefore, under all the circumstances, it is pre- 

 ferred in this work to call all these beings of the 

 invisible world, microbes, whether or not they be 

 the cause of disease, whether they be our friends or 

 our foes. 



