LIST OF ILLUSTRATIONS 



1. Types of bacterial morphology 10 



2. Bacterial capsules 12 



3. Arrangement of bacterial flagella 15 



4. Various positions of spores in bacterial cell 17 



5. Germination of spores 17 



6. Degeneration forms of Bacillus diphtherise 19 



7. Degeneration forms of Bacillus pestis . . . . _ 20 



8. Hot-air sterilizer 69 



9. Arnold sterilizer 70 



10. Low-temperature sterilizer 71 



11. Autoclave 72 



12. Lentz formalin apparatus 90 



13. Breslau formaldehyde generator and section of same 91 



14. Hanging drop preparation 94 



15. Florence flask 114 



16. Erlenmeyer flask 114 



17. Petri dish 115 



18. Test tubes, showing method of stoppering 116 



19. Burette for titrating media 117 



20. Tubing media 118 



21. Media in tubes 119 



22. Berkefeld filter . . 120 



23. Berkefeld filter 121 



24. Reichel filter 122 



25. Kitasato filter 123 



26. Maassen filter, for small quantities of fluid 124 



. 27. Platinum wires 142 



28. Taking plugs from tubes before inoculation 143 



29. Inoculating 144 



30. Pouring inoculating medium into Petri dish 145 



31. Streak plate 147 



32. Deep stab cultivation of anaerobic bacteria 148 



33. Deep stab cultivation of anaerobic bacl^ria 149 



34. Cultivation of anaerobes in fluid under albolin 150 



35. Wright's method of anaerobic cultivation in fluid media 151 



36. Novy jar 152 



37. Wright's method of anaerobic cultivation by the use of pyrogallic-acid 



solution 153 



38. Jar for anaerobic cultivation 154 



XV 



