OTHER BACTERIAL DISEASES. 3/9 



CHAPTER XVI. 



OTHER BACTERIAL DISEASES. 



BESIDE the two already referred to, there are quite a number 

 of diseases among domestic animals which have been beyond 

 any question traced to the action of bacteria. None of these 

 have as much general interest as the two mentioned, although 

 some of them are of very great significance in certain agricul- 

 tural communities. As the diseases of domestic animals have 

 been more and more studied, it has become evident that quite 

 a large number of them are to be attributed to the growth of 

 parasitic bacteria. The number now known to be caused by 

 such agency is being constantly increased, and no list given at 

 any time could be regarded as complete. The following list 

 includes only the most important of the diseases of domestic 

 animals which, up to the present time, have been traced beyond 

 doubt to a definite species of bacterium. The list is not com- 

 plete. Other less important diseases could be added to the 

 list to-day, and there are others which will probably be in- 

 cluded in this list in later years. 



BACTERIAL DISEASES OF ANIMALS. 



B. septicaemias hsemorrhagicae. The bacillus that is known 

 under this name is one that has long been studied and may 

 well be mentioned first. It was studied many years ago by 

 Pasteur as the cause of a disease among domestic fowls, 

 known as fowl cholera. Later Professor Koch studied a dis- 

 ease among rabbits which he called rabbit septicemia. Further 

 studies in more recent years have indicated that the cause of 



