TABLE OF CONTENTS. 



PLATES. 



PAGE 



PLATE I. Fig. I. Development of germs in organic fluids, show- 

 ing the changes from day to day. Figs. 2 to 4. Bacteria germs 

 under magnifying powers varying from 1, 800 to 55 diame- 

 ters. Fig 5. Most minute germs, visible under the one-fiftieth 

 of an inch object glass. Fig. 6. Yeast cells growing, under 

 powers of 215 and 40x3 diameters. Fig. 7. Yeast cells with 

 germs growing from them, magnified 1,300 diameters. Fig. 8. 

 Young growing yeast cells, under a power of 2,800 diameters. 16 



PLATE II. Fig. 9. Old spores of fungi, with very thick formed 

 material. Fig. 10. Germs of fungi, showing relation of bioplasm 

 to formed material. Fig. 1 1. Passage of bioplasm through 

 pores in the formed material, to illustrate formation of branch- 

 ing stems. Fig. 12. Extremities of rapidly growing fungus 

 stem, to illustrate rapid growth of bioplasm. Fig. 13. Most 

 minute bacteria x 2,800. Fig 14. Germs of bacteria, grow- 

 ing and multiplying rapidly ... ... ... 20 



PLATE III. Fig. 15. Vegetable organisms and other minute 

 masses of bioplasm from surface of villus, cattle plague. 

 Fig. 1 6. Vegetable organisms from a clot of blood. Figs. 17 

 to 20. Living germs from contents of hermetically sealed 

 vessels. Fig. 21. Vegetable growth in mucus. Fig. 22. 

 Vegetable growths in different stages of development in 

 sputum ... .. ... ... ... ... ... ... 46 



PLATE IV. Fig. 23. Bacteria from intestinal contents, cholera. 

 Fig. 24. Free bacteria germs i from columnar epithelium, 

 cholera x 1,800. Fig. 25. Bacteria in the contents of an 

 obstructed capillary. Fig. 26. Vegetable germs in blood of a 

 cow which died of cattle plague. Fig. 27. Sporules of fungi 

 in contents of capillary ... ... ... ... ... ... 68 



PLATE V. Fig. 28. Bioplasm of bacterium. Figs. 29 and 30. 



Bioplasm of amoeba. Figs. 31 and 32. Bioplasm of mucus ... 100 



PLATE VI. Fig. 33. Growing extremities of placental tuff. 



Fig. 34. Capillary vessels opening into small vein ; Pia mater 104 



b 



