50 



GENERAL MICROBIOLOGY 



lar (double concave) or compoundly lenticular in shape as a 

 rule, species differences not being as well denned. 



Apparatus. Tripod leveling stand; glass plate about 



I 



14 inches square; small spirit level; water-bath; thermom- 

 eter; sterile Petri dishes; tubes of sterile media (gelatin 

 or agar); culture; platinum needle and loop; Bunsen 

 burner; wax pencil; mixed or pure culture. 



