VI CONTENTS. 



CHAPTER IV. 



MICBOSCOPIC ANIMALCULES. 



SECT. PAGE 



1. Infusoria, 46 



2. Polygastrica, 46 



3. Cilia, 47 



4. Rotifera, 49 



5. Melicerta Ringens, 51 



6. Interesting Spectacle, 52 



7. Tenacity of Life, 54 



8. Views of the Divine Benevolence, 57 



CHAPTER V. 



MICROSCOPIC ILLUSTRATIONS. 



1. Difficulties, 60 



2. Fossil Earths, 60 



3. Red Snow, Green Snow, Red Rain, &c., 61 



4. The Protococcus, 63 



5. Ehrenberg's Passat-Staub und Blut-Regen 63 



6. Prodigy of Blood, D'Aubigng's History of the Reformation, . 65 



7. Variety of Microscopic Illustrations, 67 



CHAPTER VI. 

 THEORIES OF THE ORIGIN op LIFE. 



1. Manifold Solutions, 71 



2. Spontaneous Generation, &c., 72 



3. Alternation of Generations, 73 



4. Authorities, .......... 76 



5. Professor Owen, 76 



6. Professor Carpenter, .77 



7. Professor James F. W. Johnston the Yeast Plant, . . 78 



8. Dr. Prout, 80 



9. Dr. Roget, 81 



10. Professor Whe well, 82 



11. Professor Sedgwick, 82 



12. Professor James Buchanan, 86 



13. Experiment of Professor Schultz 86 



14. The Development Theory Genealogical Tree, .... 88 



