SPIROCILETES. 



is difficult to believe that the two organisms belong to 

 the same genus. 



So far as I can judge from my own observations, the 

 peculiar aggregations of staining material seen in Sp. 



FIG. 9. FIG. 10. 



FIG. 9. Bacteria from rectum of ox for comparison with Fig. 8. 

 FIG. 10. Spirillum volutans for comparison with Fig. 8. 



anodonta are not to be looked on as nuclei. They are 

 irregular in shape and quite unlike the nuclei of pro- 

 tozoa. They seem to occur for the most part in organ- 

 isms which are degenerating (so-called "involution 



9 



FIG. ii. Filaments of algae: a, Resembling fusiform bacilli; b, 

 showing central staining rod; c, with series of chambers; d, e, 

 curved like spirochaetes. 



forms ") . In other instances they may point to a forth- 

 coming developmental change (p. 40). The great 

 majority of the organisms in my experience stain 



