THE EXAMINATION OF CULTURES 21 
EG CY C2 YD && 
ai 
a, eae 
Koy 
2 3 4, 
ae, ——— ces 
A 
Y 
iN 
Y 
Ca Dd 
te! “Nad 
Fic. 2. Characters of growth in depth of media: 1, filiform; 2, beaded; 
3, tuberculate-echinulate ; 4, arborescent; 5, villous. 
( 
e 
“ow Neo Keg 
Fic. 3. Types of liquefaction in gelatin stab cultures: 1, crateriform; 
2, napiform ; 3, saccate; 4, infundibuliform; 5, stratiform, 
