LIST OF ILLUSTRATIONS. 



PAGE 



1. Staphylococci, . . . . . . . . . 21 



2. Zoogloea 21 



3. Ascococcus, 21 



4. Streptococci, 21 



5 Tetrads, . . 22 



6. Packets sarcina, . . . 22 



7. Bacilli, 23 



8. Involution forms, ........... 23 



9. Chains formed by binary division, ........ 23 



10. Spirilla, 24 



11. Cladothrix 24 



12. Flagella, 24 



13. Platinum wire in glass handle, ........ 25 



14. Flask for drawing off blood serum, . 38 



15. Method of forcing blood serum into test tube, 38 



16. Suction pipette, 38 



17. Hot- water funnel, 42 



18. Karlinski's agar filter, . . . . 44 



19. Unna's agar filter, 45 



20. Glass dishes for preserving potato cultures, 48 



21. Test tube for sterilizing potato, . 48 



22. Shape of potato for test-tube culture, 48 



23. Hot air oven, . 52 



24. Koch's steam sterilizer, . 53 



25. Koch's steam sterilizer, 53 



26. Arnold's steam sterilizer, ... 54 



27. Miincke's steam sterilizer, ......... 54 



28. Koch's apparatus for coagulating blood serum, ..... 55 



29. Miincke s steam sterilizer and coagulator, 56 



30. Pasteur Chamberlain filter, 57 



31. Pasteur- Chamberlain filter without metal case 58 



32. Modified Pasteur-Chamberlain filter, 59 



33. Erlenmeyer flask 6 * 



34. Flask used by Pasteur, 61 



35. Platinum wire loop, 62 



36. Platinum needle, 63 



37. Sternberg's bulb, 



38. Fermentation tube, 66 



39. Method of making stick culture, 6 ? 



