LIST OF ILLUSTRATIONS. 



PIG. PAGE 



I. Micrococci. Bacilli, Spirilla . . 4 



i. Test-tube with Culture-medium 7 



3. Microscope . . • 19 



4. Abb^ 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 



