MORPHOLOGY OF BACTERIA. 



69 



plasma, which takes hsematoxylin stain with diffi- 

 culty, is often very thin, and indeed often present 

 only at the extremities; and a large central body 



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3 68 8# 

 8098 

 8 8 3 



a b 



FIG. 8. Pseudodichotomy. a, In bacilli; 6, in streptococci. 



(nucleus), which stains better with haematoxylin. 

 The latter shows a distinct, the former not always a 

 distinct honey -combed structure. Among the meshes 

 of the comb, which stain blue with hsematoxylin, are 

 situated in the central body numerous granules which 

 are stained red by hsematoxylin. 

 At an earlier period Schottelius (C. B., IV., 705) 



FIG. 3. Chromatium Okenii 

 Ehrbg. (After Butschli.) 



FIG. 4. Bacillus oxalaticus 

 Migula. (After Migula.) 



expressed a similar opinion of the structure of bacte- 

 ria. According to him the bacillus anthracis consists 

 of a narrow nuclear filament, which stains a blackish- 

 red with a very dilute watery solution of fuchsin, and 



