i.] THE HISTORY OF THE COMMA- BACILLUS. 21 



description give by Koch of the distribution, morphological 

 characters, and cultivation of the comma-bacilli are very 

 detailed and clear, and it cannot be said that any other 

 observer has been able to add anything of importance since 

 Koch's publications. The statements by Von Ermengem, 

 Babes, Watson Cheyne, and others on the morphological 

 and culture characters of the comma-bacilli, are therefore to 

 be regarded as repetitions of those first made by Koch. 

 Nothing new is brought forward by these observers. I 

 think I may therefore be excused from referring to the 

 statements of these authors so far as they treat of this part 

 of the subject. 



