INFLUENZA. I4I 
(2) Perform an autopsy on the dead pig; note 
the pathologic changes, and prepare cultures, 
smears, and sections from the organs and from the 
point of inoculation. 
VI. INFLUENZA. 
1. Prepare blood-agar tubes by smearing the sur- 
face of a ordinary agar-tube with a drop of blood 
senate fe 
Poy adr 
Fic. 75.—Bacterium influenze, from a gelatin culture; 
x tooo (Itzerott and Niemann). 
obtained aseptically from man, rabbit, guinea-pig, 
pigeon, or frog. 
2. Break up a distinctly purulent portion of 
influeuza sputum in x or 2 c.c. of bouillon, and 
spread a loopful of the suspension over the surface 
of the blood-agar tube. 
