380 BACTERIA IN INFECTIOUS DISEASES. 



torns of the disease. These inoculations did not, 

 however, produce a fatal form of the malady, and 

 Salmon found it impossible to carry the virus 

 beyond a second generation, even by inoculating 

 pigs which had never before been exposed to the 

 contagium. 



Dr. Klein has recently reasserted his belief that 

 this disease is due to the bacillus described by him 

 in his original report, and has given additional 

 experimental evidence in favor of this view (Jour- 

 nal of Physiology, Vol. V., No. 1). 



SYPHILIS. The presence of bacteria in the 

 initial lesion of syphilis, in secondary papules, in 

 syphilitic new growths, and in the secretions of 

 chancroids and syphilitic ulcers, has been noted by 

 numerous observers. But the descriptions given 

 by different individuals are not entirely in accord 

 as to the morphological characters of these bacteria. 

 According to some, Hallier, Klebs, Bermann, 

 they are micrococci ; while others have found 

 bacilli, Birch-Hirschfeld, Morison ; and Salis- 

 bury finds a fungus his Crypto, syphilitica in 

 the blood as well as in the local lesions of syphilis. 



Birch-Hirschfeld at first described the organisms 

 found by him in syphilitic growths as bacilli, but 

 has since become convinced that they are oval 

 micrococci arranged in chains. He says that it is 

 more difficult to distinguish the individual elements 

 in the chains than in the case of spherical micro- 



