304 A Pathogenic Schizophyte of the Hog. [April, 



other morbid products, etc., if putrefied, can be consumed by- 

 healthy animals without communicating the disease, and if used 

 for inoculation, such putrefied material may cause septicaemia, but 

 never produces a genuine case of swine-plague. Further, as has 

 been previously mentioned, swine-plague Schizophytes cannot 

 any more be found in the blood, blood serum, morbid tissues and 

 morbid products, etc., of hogs which are diseased with, or have died 

 of, swine-plague after putrefaction has set in, or in other words, 

 after putrefaction bacteria, and particularly Bacterium termo, 

 have made their appearance in large numbers. So, for instance, 

 blood which has become sufficiently putrefied to assume a pur- 

 plish color, is destitute of swine-plague Schizophytes. If these 

 two facts are connected, it becomes evident that infectious sub- 

 stances or media lose their efficacy, or their power to communi- 

 cate the disease to healthy animals simultaneously with the dis- 

 appearance of the swine-plague Schizophytes, and vice versa, the 

 latter disappear at the exact time at which the infectious sub- 

 stances or media cease to be infectious. Does this indicate a close 

 relationship between the swine-plague Schizophytes and the in- 

 fectious principle, or can such a remarkable coincidence be rejected 

 as merely accidental ? Further, is it more rational to accept as 

 the cause and infectious principle of swine-plague, an unseen 

 virus or something which nobody has ever produced, nor ever 

 will produce, but which, notwithstanding, is indestructible by 

 water, air and dilution, and possesses the remarkable property of 

 making its exit at the very moment at which the swine-plague 

 Schizophytes are destroyed, or caused to disappear by putrefac- 

 tion, than to regard the latter, the Schizophytes, which do exist, 

 are present, can be seen, have been shown and, moreover, possess 

 all the properties and peculiarities manifested by the infectious 

 principle, as the true cause of the morbid process and the propa- 

 gators of the disease? I, for one should not think so. 



12. It is an established fact that the morbid process, which in- 

 variably affects the lungs, will also develop in all such other parts 

 or organs as may happen to be wounded, inflamed, or in a state 

 of congestion — for particulars I have to refer to my reports — and 

 thus some other parts besides the lungs may sometimes become 

 just as much, or even more affected than the latter. So, for in- 

 stance, if a pig has been ringed, or been castrated, and a perfect 

 healing has not yet taken place when the animal becomes infected, 



