ILLUSTRATIONS 



[Illustrations starred (*) are reproduced by permission of the Scientific Prefes 

 from Drs. Spitta and Slatei'*s Atlas of Bacteriology.^ 



PAGE 



Various Forms of Bacteria . .... 9 



Sarcina .... . .10 



Normal and Pleomorphic Forms of Tubercle . . 13 



Bacilli, Showing Flagella . 15 



Various Forms of Spore Formation and Flagella . 18 



Potato in a Roux Tube Prepared for Cultivation ... 22 

 Staphylococcus Pyogenes Aureus Incubator . to face 22 



Culture Media Ready for Inoculation . . .23 



Inoculating Needles 24 



Pasteur's Large Incubator for Cultivation at Room Temper- 

 ature ... ...... to face 24 



Method of Producing Hydrogen by Ktpp's Apparatus for Cul- 

 tivation of Anaerobes . . .27 



Anaerobic Culture . , .28 



Koch's Steam Steriliser .... ... 31 



Levelling Apparatus for Koch's Plate . . . . . .40 



Moist Chamber in which Koch's Plates are Incubated 41 



HoT-AiR Steriliser ... . . . , 42 



The Hanging Drop ... .... 44 



Drying Stage for Fixing Films . . . 45 



Types of Liquefaction of Gelatine ... . 47 



WolfhOgel's Counter ... . . . 49 



Petri's Dish . . . . . . 50 



Berkefeld Filter 52 



Apparatus for Filtering Water to Facilitate its Bacterio- 

 logical Examination . to face 52 



Bacteria of Typhoid Fever . . .... 56 



Bacillus Coli Communis . 60 



The Comma-Shaped Bacillus of Cholera 66 



*Bacillus Typhosus to face 66 



♦Bacillus Typhosus ... ... "66 



