46 



THE OEGANISM IS A BACILLUS. 



THE GELATINE IS NOT LIQUEFIED. 



THE ORGANISM IS NON-CHBOMOGENIC. 



THE COLONIES EBSEMBLE WHITE DISCS OR NAIL- 

 HEAD PROJECTIONS, WITH SMOOTH BORDER. 



Bacillus oxytocus perniciosus, from stale milk; short baciUi with 

 , round ends, thicker than Bacillus acidi lactici ; colonies have 

 a yellow tinge ; without smell. 



Bacillus sycosiferus foetidus (TommasoU), from the hair folhcles in 

 sycosis ; short immotile rods with round ends ; will set up irri- 

 tation at the base of the hairs if rubbed into the skin. 



Bacillus oedematis aerobicus, Klein's bacillus of malignant oedema ; 

 bacilli 0'8 to 2 /^ long, in filaments ; will not stain by Gram. 



Bacillus albus, from water ; short motile baciUi with blunt ends, 

 forming chains ; forms a milk-white layer on agar. 



Bacterium aerogenes (Miller), from alimentary canal; small motile 

 bacilli, varying in length. 



Bacillus capsulatus mucosus (Pasching) from nasal secretion in 

 influenza ; non-motUe bacilli 3 to 4 ;j long, enclosed in a capsule 

 containing from one to four organisms ; wUl not stain by Gram. 



Bacillus Neapolitauus (Emmerich), from the blood and organs of 

 cholera cadavers ; small baciUi, resembling BacUlus coli ; will 

 not stain by Gram ; the colonies resemble drops of mucus. 



Bacillus striatus albus (von Besser), from healthy nasal mucus ; 

 rather rare ; short, thick bacilli, resembling Bacillus diphtherise ; 

 slightly curved; stains slightly irregularly with methylene blue; 

 grows at the ordinary temperature. 



Bacillus limbatus acidi lactici (Marpman), from fresh mUk ; short, 

 thick, capsuled baoiUi, usually in pairs ; grows very slowly ; 

 when grown in milk, a reddish tinge is apparent in twelve 

 hours ; coagulation of casein occurs in twenty-four hours, with 

 acid reaction. 



Helicobacterium aerogenes (MiUer), from the alimentary canal; 

 slender bacilli growing in long filaments ; this organism and 

 the Bacterium, Bacillus and Micrococcus aerogenes offer great 

 resistance to acid secretions, passing through the stomach into 

 the intestinal canal uninjured. 



