DESCRIPTION OF PLATE I. 

 Bacteria, Schizomycetes, or Fission Fungi. 



1. Cocci singly and varying in size. 2. Cocci in chains or rosaries (strepto- 

 coccus). 3. Cocci in a mass (staphylococcus). 4 and 5. Cocci in pairs 

 (diplococcus). 6. Cocci in groups of four (merismopedia). 7. Cocci in packets 

 (sarcina). 8. Bacterium termo. 9. Bacterium termo x 4000 (Dallinger and 

 Drysdale). 10. Bacterium septiccemice hccmorrliagicce. 11. Bacterium pneu- 

 iiumice crouposcB. 12. Bacillus subtilis. 13. Bacillus murisepticus. 14. 

 Bacillus diphtheria. 15. Bacillus typliosus (Eberth). 16. Spirillum undula 

 (Cohn). 17. Spirillum volutans (Cohn). 18. Spirillum cliolerce Asiaticce. 

 19. Spirillum Obermeieri (Koch). 20. Spirocliceta plicatilis (Fliigge). 21. 

 Vibrio rugula (Prazmowski). 22. Cladothrix Forsteri (Cohn). 23. Cladothrix 

 dichotoma (Cohn). 24. Nonas Okenii (Cohn). 25. Nonas Warmingii (Cohn). 

 26. Rhabdomonas rosea (Cohn). 27. Spore-formation (Bacillus alvei). 28. 

 Spore -formation (Bacillus anthracis). 29. Spore-formation in bacilli cultivated 

 from a rotten melon (Frankel and Pfeiifer). ,30. Spore-formation in bacilli 

 cultivated from earth (Frankel and Pfeiffer). 31. Involution-form of Crenotlirix 

 (Zopf). 32. Involution-forms of Vibrio serpens (Warming). 33. Involution- 

 forms of Vibrio rugula (Warming). 34. Involution-forms of Clostridium 

 polymyxa (after Prazmowski). 35. Involution-forms of Spirillum cholerce 

 Asiaticce. 36. Involution-forms of Bacterium aceti (Zopf and Hansen). 

 37. Spirulina-form of Beggiatoa alba (Zopf). 38. Various thread-forms of 

 Bacterium merismopedioides (Zopf). 39. False-branching of Cladothrix (Zopf). 



