DESCRIPTION OE PLATES. 



DESCRIPTION OF PLATE I. 

 Bacteria, ScMzomycetes, or Fission Fungi. 



Follow'mff p. 14, 



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. Sacterium termo x 4000 (Dallinger and 

 Drysdale). 10. Bacterium sej>ticcE7niis licemorrhagic(S. 11. Bacteriwm pTieu- 

 monics crouposm. 12. Bamllvs suMilis. 13. Bacillus mv/risepticus. 14. 

 Bacill'us dipMherice. 15. Bacillus typhosus (Eberth). 16. Spirilhmt rnidula 

 (Cohn). 17. Spirillum volutans (Cohn). 18. Spirillum, ckolerm Asiaticce. 

 19. Spirillum Ohermeieri (Koch). 20. Spiroclueta plicatilis (Fltigge). 21. 

 VHrij) rugula (Prazmowski). 22. Cladothrix Forsteri (Cohn). 23. Cladotlvrix 

 dichotoma (Cohn). 24. Monas Oltemi (Cohn). 25. Monas Warmimgii (Cohn). 

 26. Bliabdomoiias rosea (Cohn). 27. Spore-formation (Bacilliis alvei). 28. 

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

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

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

 (Zopf). 82. Involution-forms of Vibrio serpens (Warming). 33. Involution- 

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

 polymyxa (after Prazmovpski). 35. Involution-forms of Spirillum eholerce 

 AsiatictB. 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). 



DESCRIPTION OF PLATE IT. 

 Pure-cnltivations of Bacteria. 



Following p. 100. 



FiGf. 1. — In tile depth of Kutrient Oelatine. A pure-cultivation of Koch's 

 comma-bacillus (Spirillum cholerse Asiaticae) showing in the track of 

 the needle a funnel-shaped area of liquefaction enclosing an air-bubble, 

 and a white thread. Similar appearances are produced in cultivations of 

 the comma-bacillus of MetchnikofE. 



Fig. 2. — On the surface of Nutrient Gelatine. A pure-cultivation of Bacillus 

 typhosus on the surface of obliquely solidified nutrient gelatine. 



