LIST OF ILLUSTRATIONS. 



FIG. PAGE 



1. Micrococci. Bacilli, Spirilla 4 



2. Test-tube with Culture-medium 7 



3. Microscope ig 



4. Abbe Condenser 20 



5. Platinum Wires 22 



6. Hanging-drop 23 



7. Cornet Forceps for Cover-glasses 26 



8. Stewart Forceps for Cover-glasses 26 



9. Kirkbride Forceps for Slides 27 



10. Schanze Microtome 39 



11. Hot-air Sterilizer 54 



12. Arnold Steam Sterilizer 57 



13. Massachusetts Board of Health Sterilizer 53 



14. Koch Steam Sterilizer 59 



15. Autoclave 61 



16. Kitasato Filter 62 



17. Test-tube with Potato . . . 72 



18. Wire Basket for Test-tubes 77 



19. Manner of Holding Test-tubes 79 



20. Stab-culture 80 



21. Smear-culture 80 



22. Incubator 83 



23. Reichert Gas-regulator 84 



24. Gas-regulator, mercurial 84 



25. Roux Bimetallic Gas-regulator 85 



26. Koch Automatic Gas-burner 86 



27. Rogers' Electric Thermo -regulator 88 



28. Buchner's Method for Cultivating Anaerobes 90 



29. Frankel's Method for Cultivating Anaerobes 91 



30. Novy's Method for Cultivating Anaerobes 92 



31. Streak Culture of the Potato Bacillus 93 



32. Petri Dish 96 



33. Dilution-cultures in Esmarch Roll-tubes 97 



34. Appearance of Colonies on Gelatin in a Petri Dish 98 



xi 



