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 ternio x 4000 (Dallinger and 

 Drysdale). 10. Bacterium gqriictgmia hamorrhagicce. 11. Bacterium pneu- 

 monia crouposce. 12. Bacillus subtilis. 13. Bacillus murisej)ticus. 14. 

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

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

 19. Spirillum Obermeieri (Koch). 20. Spirochata 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. 

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

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

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

 (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 cholera 

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

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

 Bacterium merismopedi aides (Zopf). 39. False-branching of Cladothrix (Zopf) . 



