14 LIST OF ILLUSTRATIONS 



no. FACING PAGE 



12. BUDDING IN AMCEBA 32 



13. MINUTE AMCEBUL.E AND A VERY SMALL AMCEBA CYST 32 



PLATE 



VIII. BINARY FISSION OF AMCEBA 34 



IX. CONJUGATION OF AMOEBA ...... 34 



no. 



14 and 15. LONG, SLENDER FORMS OF THE AMCEBA . . 38 



16. PHOTOMICROGRAPH OF A LONG, SLENDER FORM OF THE 



AMCEBA 38 



17. LARGE MULTINUCLEATE FORM OF THE AMCEBA ON A 



TYROSIN MEDIUM 40 



18. INDUCED DIVISIONS IN Polytoma granuloaa . . 40 



19. PHOTOMICROGRAPH OF AMCEBA CYSTS . ... 40 



20. EADIOSE (TYPE 1) FORM OF THE AMCEBA ... 44 



21. KADIOSE (TYPE 2) FORMS OF THE AMCEBA ... 44 



22. EFFECTS OF STARVATION ON AMCEBA . . . .52 



23. QUIESCENT FORMS OF THE AMCEBA .... 52 



24. AMCEBA CYSTS FREE FROM LIVING BACTERIA . . 52 



25. AN AMOEBA-LIKE ORGANISM WHICH INFECTED SOME OF 



THE CULTURES 52 



26. PHOTOMICROGRAPH OF AMCEBA IN " PURE MIXED CUL- 



TURE " WITH Bacillus fluorescens non-liquefaciens . 84 



27. PHOTOMICROGRAPH OF AMCEBA CYSTS ADHERING TO A 



COLONY OF BACTERIA .... .84 



28. PHOTOMICROGRAPH OF A PURE CULTURE OF Bacillus 



flavo coriaceus . 96 



29. PHOTOMICROGRAPH OF A PURE CULTURE OF Baculus 



fluorescens liquefaciens . . . . . .96 



30. PHOTOMICROGRAPH OF Bacillus proteus vulgaris . . 102 



31. A PARASITE OF THE AMCEBA 102 



32. PHOTOMICROGRAPH OF AMCEB^E INFECTED WITH A 



PARASITE 104 



33. PHOTOMICROGRAPH OF A PURE CULTURE OF THE AMCEBA 



PARASITE . . ...... 104, 



