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LIST OF ILLUSTRATIONS 



SUCCESSIVE STAGES OF NUCLEAR DIVISION SEEN IN 

 ONE LIVING AMCEBA .... Frontispiece 



TIG. FACING PAQB 



I. SUCCESSIVE CHANGES IN SHAPE OF AMCEBA EXAMINED 



IN TAP WATER ON A "LivE SLIDE" . . .18 



PLATE 



I. SPECIAL METHOD DEVISED FOR THE CONTINUOUS 



OBSERVATION OF AMCEB,*: ..... 20 



II. LIVE SLIDE FOR THE PROLONGED EXAMINATION OF 



IN SOLUTIONS OF CONSTANT STRENGTH . 20 



III. CULTIVATION OF AMCEB.E BY THE " MOIST AIR 



CHAMBER " METHOD . . . . . .22 



no. 



2. ISOLATION OF A SINGLE CYST OR A GROUP OF CYSTS . 22 



3. PHOTOMICROGRAPH OF GROUPS OF CYSTS (LOW POWER) 22 



4. APPARATUS FOR TESTING THE ACTION OF GASES ON 



AMO3B2E OR AMCEBA CYSTS ..... 22 



5. AMCEBA EXAMINED BY THE JELLY METHOD ... 22 



6. STAGES OF NUCLEAR DIVISION SEEN BY THE JELLY 



METHOD ..... ... 24 



7. CHANGES IN THE NUCLEUS OF A LIVING AMCEBA OB- 



SERVED BY THE JELLY METHOD .... 24 



8. COARSELY GRANULAR VARIETY OF THE AMCEBA . . 24 



PLATE 



IV. STAGES OF NUCLEAR DIVISION OF AMCEBA SHOWN BY 



THE JELLY METHOD OF STAINING .... 26 



V. In-vitro STAINING OF AMCEBA BY THE JELLY METHOD 26 



VI. AMCEBA CYSTS STAINED BY THE JELLY METHOD . . 26 



VII. SOME WELL-KNOWN TYPES OF AMCEBA ... 28 



no. 



9. AN ACCUMULATION OF SPHERICAL GRANULES IN AMCEBA 



WHICH OFTEN PRECEDES ENCYSTMENT . . .32 



10. APPEARANCE ASSUMED BY AMCEBJS WHEN DYING. . 32 



11. BINARY FISSION OF MULTINUCLEATE FORMS OF THE 



AMCEBA ........ 3? 



13 



