Pathogenic Microbes in the Static Condition. 39 



PAKT SECOND. 



GENERAL CONSIDERATIONS UPON PATHOGENIC 



MICROBES. 



This secona part of our work will embrace : 1st. the 

 study of pathogenic microbes in the static condition, 

 that is to say, considered especially as to their general 

 localizations, without taking into consideration their 

 action upon the economy ; 2d. the study of the recip- 

 rocal reaction of the organism and the microbe, which 

 we will designate by the term physiology of pathogenic 

 microbes ; 3d. the transformations and destruction of 

 microbes in their relations with hygiene and therapeu- 

 tics, and 4th. finally, the methods of determination of 

 pathogenic microbes. 



CHAPTER I. 



PATHOGENIC MICROBES IN THE STATIC CONDITION. 



1. Conditions of life in external media and within the economy. 

 Sources of infection. — 2. Distribution of pathogenic germs.— 

 3. Modes of contagion. Ways of penetration of pathogenic 

 microbes. 



Most micro-organisms live in the external world at 

 the expense of dead matter ; these have received the 

 name of saprogenic or saprophytic germs. 



Some live in either a permanent or adventitious way 



