DESCRIPTION OF PLATE I. 

 Bacteria, Schizomycetes, or Fission Fungi. 



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

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

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

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

 Drysdale). 10. Saoterium septiccemice hcenwrrliagicce. 11. Baetervwm pneu- 

 monite crowposm. 12. BaoilVm suiiilis. 13. Bacilliis mwisejrtieits. 14. 

 Bacillus diphtheria. 15. Bacillus typhosus (Eberth). 16. Spirilhmi xi/ndula 

 (Cohn). 17. Spirillvmi volutans (Cohn). 18. Spirillum cholerne Asiatics. 

 19. Spirillum Oiermeieri (Koch). 20. Spirochteta pUcatilis (Plligge). 21. 

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

 dichotoma (Cohn). 24. Manas Okenii (Cohn). 25. Monas Warmingii (Cohn). 

 26. Bhabdomonas rosea (Cohn). 27. Spore-formation {Bacillus alvei). 2S. 

 Spore-formation {Baeillus anthracis'). 29. Spore-formation in bacilli cultivated 

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

 cultivated from earth (Frankel and PfeifEer). 31. Involution-form of Crenotlvrix 

 (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 Spirilhim cholerte 

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

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

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



