APPEARANCE OF GROWTH ON CULTURE MEDIA 217 



the organisms lose their motihty. Non-motile facultative 

 anaerobes usually cloud the broth also, but settle out more 

 rapidly than the motile ones. 



Fig. 145 



Fig. 

 Fig. 

 Fig. 

 Fig. 



Fig. 146 



Fig. 147 



Fig. 148 



145. 

 146.- 



147.- 

 148.- 



-Crateriform liquefaction of gelatin. 

 -Funnelform liquefaction of gelatin. 

 -Saccate liquefaction of gelatin. X 

 -Stratiform liquefaction of gelatin. 



In- gelatin and agar punctures the oxygen relationship 

 is shown by surface growth for aerobes, growth near the 

 bottom of the puncture for anaerobes, and a fairly uniform 

 growth all along the line of inoculation for facultative 



