CONTENTS 



Page 



Viruses and rickettsial 1 



Bacteria 2 



Actinomycetes 4 



Algae 5 



Protozoa 7 



Fungi 9 



Phycomycetes 9 



Ascomycetes 10 



Hemiascomycetes (yeasts) 12 



Euascomycetes 12 



Basidiomycetes__ 13 



Fungi Imperfecti 15 



Myxomycetes 17 



Lichens 18 



Relationship of taxonomy to technology 18 



Sources of micro-organisms 21 



Culture collections 22 



Maintenance of cultures 24 



Nomenclature and taxonomy 27 



Systems of classification 30 



Naming new genera or species 34 



Literature cited 34 



