22 PLACE OF MICROORGANISMS IN NATURE 



into Hyphomycetes (moulds), Blastomycetes (yeasts), 

 and Schizomycetes (bacteriaceae or bacteria). This 

 family is divided into Cocci, Bacilli, and Spirilla. 



Protozoa, the lowest animal class, present the orders 

 Sarcodina, Mastigophora, and Sporozoa, which con- 

 tain nearly all the forms of interest in this work. 



