Acid-fast Bacilli. 



Mature colonies on glycerine-agar. Actual size 



I. Bacillus tuberculosis — source, human. 

 3. Butter bacillus— Rabinowltsch. 

 5. Bacillus Friburgensis I. — Kom. 



2. Bacillus tuberculosis — source, bovine. 

 4. Butter bacillus — Grassberger. 

 6. Bacillus Friburgensis II. — Korn. 



Bitiuten fa^fs 134 and 13s 



