41 



THE OEGANISM IS A BACILLUS. 

 THE GELATINE IS NOT LIQUEFIED. 

 THE COLONIES ABE NON-CHEOMOGENIC. 

 THE COLONIES RESEMBLE CLEAR DROPS. 



Bacillus sail variussepticus (Biondi), from saliva; short rods in chains 

 or small masses ; it is best grown in medium to which a little 

 dilute hydrochloric or phosphoric acid has been added. By 

 some authorities this bacillus is considered to be identical with 

 Diplococous pneumoniae ; Schenk describes it as a short-pointed 

 bacillus in chains or clumps. 



Bacillus septicus vesicae (Clado), from urine ia cases of cystitis; 

 bacilli, 1 to 2 ;u, long, with rounded ends, not united in pairs or 

 chaias. 



Bacillus epidermidis (Leptothrix epidermidis), bacilli 2 to 3 /i long ; 

 never united in pairs or chains : obtained from the scales of 

 epidermis between the toes ; forms long, oval spores. 



Bacillus of fowl cholera (Klein), from the blood of chickens dying of 

 fowl cholera, and differentiated from Pasteur's bacillus of fowl 

 cholera (Bacillus septicaemia hemorrhagica) by being non- 

 pathogenic to rabbits ; bacilli with rounded ends, 1 to 2 yit long, 

 often in pairs ; colonies appear as whitish discs with irregular 

 margins. 



Bacillus of swine plague, bacilU with rounded ends, about a third 

 smaller than Bacillus typhosus; the ends stain, leaving the 

 centre clear ; it is distinguished from the bacillus of hog cholera 

 by its producing indol and phenol in solutions containing 

 peptone, and in its coagulating mUk, with acid reaction; will 

 not stain by Gram; by many considered identical with the 

 bacUlua of hog cholera. 



