BACTERIOLOGY. 



Bacteriology is the science of the minute organisms 

 that inhabit the sea, land and atmosphere in fact, 

 every place that can be inhabited. Their morphology 

 is simple. They are of three general classes, viz.: 

 rods, spheres and curves. 



Classify the spheres into cocci : Monococci, *. e., 

 one sphere; diplococci, two spheres; streptococci, 

 spheres arranged in a chain; staphylococci, spheres ar- 

 ranged in a bunch. Staphylococci are divided into 

 several names, according to the color of the growth 

 on the medium. 



GENERAL BIOLOGY OF BACTERIA. 



There are six points to consider in the cultivation 

 of bacteria: food supply, reaction, moisture, gaseous 

 surroundings, temperature and light. 



We will first consider the food supply, which -is the 

 medium on which they grow. It is, in nature, the 

 different substances that they accidently fall on and 

 grow ; but, in the laboratory, it is the different media 



that we make for their sustenance or growth. Bac- 



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