DESCRIPTION OP PLATES. 



DESCRIPTION OF PLATE I. 

 Bacteria, Schizomycetes, or Fission Fungi. 



Following p. 14. 



1. Cocci siDgly 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. Baciervwm termo x 4000 (Dallinger and 

 Drysdale). 10. Bacterium septic<smiee htemorrhagiecs. 11. Bacterium pneu- 

 monice crouposce. 12. Bacillus suitilis. 13. Bacillus murisepticus. U. 

 Bacillus diphtherieK. 15. Bacilliis typhosus (Eberth). 16. Spirillum, widula 

 (Cohn). 17. Spirillum ■Kolutans (Cohn). 18. Spirillum ckolerce Asiatics. 

 19. Spirillum Oiermeisri (Koch). 20. Spi/rncheeta plieatilis (Flugge). 21. 

 Vibrio rugula (Prazm'owski). 22. Cladothrix Forsteri (Cohn). 23. Cladotltrix 

 diclwtoma (Cohn). 24. Monas Okenii (Cobn). 25. Monas Warmi/iigii (Cohn). 

 26. Mliabdomonas rosea (Cohn). 27. Spore-formation {Bamllus alvd'). 28. 

 Spore-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 Viirio rugula (Warming). 34. Involution-forrhs of Clostridium 

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

 Asiaticie. 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-branchijig of Cladotliri(i;(Zapt). 



DESCRIPTION OP PLATE II. 



Pure-cultivations of Bacteria. 



Following p. 100. 

 Fig. 1. — In the dejith of Kvtrient Gelatine. A pure-cultivation of Koch's 

 comma-bacillus (Spirillum choleras Asiaticae) stowing in the track of 

 the needle a funnel-shaped area of liquefaction enclosing an air-bu"bble, 

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

 the comma-bacillus of Metchnlkoff. 

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

 typhosus on the surface of obliquely solidified nutrient gelatine. 



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