DESCRIPTION OF PLAT^ 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. Bactenum termo. 9. JBacierium termo x 4000 (Dallinger and 

 Drysdale). 10. Bacterium septicceni'us hcemorrTiagioo!. 11. Baeterium pneu- 

 vumice crouposce. 12. Bacillus suiiilis. 13. Bacillus murisepticus. 14. 

 Bacillus diplttherite. 15. Bacillus typlwsus (Bberth). 16. Spirilhmi wiidvla 

 (Cohn). 17. Spirillum volutans (Cohn). 18. Spirillum cholerte Asiaticte. 

 19. Spirillum Obervieieri (Koch). 20. SpirocJiceta plicatilis (Fliigge). 21. 

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

 dichotona (Cohn). 24. Manas OTtenii (Cohn). 25. Monas WarmingiA (Cohn). 

 26. BJidbdomonas rosea (Cohn). 27. Spore-formation (^Bacillus alvci). 28. 

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

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

 cultivated from earth (Frankel and PfeifEer). 31. Involution-form of Crenbtli/rias 

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

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

 poLymyxa (after Prazmowski). 35. Involution-forms of Spirillum choleree 

 Aslaticce. 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). 



