THE CLASSIFICATION OF BACTERIA 121 



8. Bact. ^Egyptium (Trevisan) 



Conjunctivitis Bacillus Koch-Kartulis : Arbeiten Kaiserlichen Gesundheitsamte, 



III, 1887. 



B. ALgyptius Trevisan : Gen. e. Spec. Batteriaceae, 1888. 

 B. conjunctivltidis Kruse: Fliigge, Die Mikroorganismen, 1896. 



Morphology. Bacteria 0.25 : I .o /x ; in twos or chains in the pus cells. Decolor- 

 ized by GrarrTs method. 



Agar slant and blood serum. At 37 C., isolated colonies, becoming a con- 

 fluent, glistening, elevated growth. 



Slight growth on gelatin ; no liquefaction. 



Pathogenesis. Inoculations on the cornea of asses, dogs, guinea-pigs, and 

 rabbits negative ; on human conjunctiva positive in one out of six 

 inoculations. 



Habitat. Associated with conjunctival catarrh in Egypt. 



9. Bact. abortivum 



Bacillus of contagious abortion in cows, Bang : Zeitsch. f. Tiermedizin, 

 Bd. I, 1897, Heft i. 



Morphology. Bacilli small, rods about the size of the tubercle bacillus ; each 

 rod contains 1-3 granules. Does not grow in ordinary culture media. 

 In 5 per cent glycerin bouillon a scanty growth in 14 days. A scanty 

 growth in liquid blood serum. 



Pathogenesis. Inoculation experiments on cows positive. 



Habitat. Associated with contagious abortion in cows. 



THE SPECIES WHICt* FOLLOW GROW ON ORDINARY NUTRIENT 

 MEDIA AND AT ROOM TEMPERATURES 



CLASS II. GELATIN NOT LIQUEFIED. DECOLORIZED BY GRAM'S 



METHOD 



I. Obligate aerobic. ACETIC FERMENT GROUP. 



A. Grow well in Pasteur's fluid containing alcohol 1 with the formation of 



a membrane. 



10. Bact. aceti (KUtz) Lanzi, emend. Beijerinck. 



B. Do not grow well in preceding fluid, and no membrane produced. 



i. Form long chains of more than four elements, also long involution 

 forms. 



1 Tap water 100, alcohol 3.0, ammonium phosphate 0.05, chloride of calcium o.oi. 

 See Beijerinck: Centralblatt f. Bakteriol., IV, 1898, 214. 



