TABLE OF CONTENTS 



Page 



Introduction 1 



Resume of Pertinent Literature on Certain Relation- 

 ships "between Extracellular Bacteria and Insects 



and Ticks k 



External "bacterial flora of insects. Bacterial 

 flora of alimentary tract proper. Cecal "bacteria. 

 Fate of "bacteria during metamorphosis. Transmis- 

 sion of "bacteria from generation to generation. 

 Bacteria and insect eggs. Variation of entomophy- 

 tic "bacteria. Bacteria as food for insects. 

 Bacteria and the physiology of insect digestion. 

 Fermentation chambers. Bacteria as a source of 

 vitamins. Bactericidal principles associated with 

 ticks and insects. Surgical maggots. 



Method of Using Catalogue 32 



Class : Schizomycetes 33 



Order : Ac t inomycetales 33 



Family: Actinomycetaceae 33 



Genus : Leptotrichia 33 



Family: Mycohacteriaceae 33 



Genus : Corynehacter ium 33 



Genus : Mycobacterium 36 



Order: Eubacteriales 39 



Family: Bacillaceae 39 



Genus : Bacillus 39 



Genus: Clostridium 90 



Family : Bacter iaceae 92 



Genus: Achromohacter 92 



Genus : Bacterium 9^ 



Genus : Flavohacter ium 115 



Genus : Fusohacterium 117 



Family : Enterohacter iaceae 118 



Trihe: Erwineae 118 



Genus : Erwinea 118 



Trihe : Eschericheae _ 122 



Genus : Aerohac ter 122 



Genus: Escherichia 12k 



Genus : Klebs iella 125 



Trihe: Proteae 126 



Genus : Proteus 126 



Trihe: Salmonelleae _ 128 



Genus : Eher the 11a : 128 



Genus : Salmonella I30 



Genus: Shigella l^l 



Tr ihe : Serrateae 132 



Genus : Serra t ia 1^2 



ii 



