FORM AND STRUCTURE OF MICROBES 69 



type from which the other is derived, or is it simply a 

 degenerated degraded form ? As far as bacteria are concerned, 



FIG. 34. Bacillus Biitschlii. (After Schaudinn.) I to 6. stages of trans- 

 verse division without sporulation. 7 to 9. Rudimentary sexual 

 process. 10 to 14. Spore formation. 15 to 16. Spore germination. 



Schaudinn regarded the conjugation which exists in B. 

 Biitschlii as an evidence of sex, though rudimentary, degraded 

 and residual. Without absolutely excluding the possibility of 



