THE FAMILIES AND GENERA OF THE BACTERIA 195 



edge. They are in no sense presented as official or binding. On 

 the other hand in order that stability of nomenclature may be 

 assured it is essential that certain generic names should be for- 

 mally adopted by the Society, and where necessary established in 

 the future by an International Botanical Congress, as genera con- 

 servanda. Such genera are provided for in the International 

 Rules of Botanical Nomenclature in cases where a strict applica- 

 tion of the rules of nomenclature, and especially the principle 

 of priority starting from a certain date, would produce confusing 

 and disadvantageous changes. In our own case it seems desir- 

 able to preserve in this way a number of generic names which 

 have come into such general use that their abandonment would 

 cause confusion, particularly in dealing with the large number of 

 medical bacteriologists who are not familiar with the principles 

 of botanical taxonomy. It is essential to proceed in a somewhat 

 conservative fashion if any influence for good is to be exerted upon 

 general practice in this field. 



The following names are recommended for adoption as ap- 

 proved genera: 



Acetobacter Fuhrmann Leuconostoc Van Tieghem 



Actinomyces Harz Micrococcus Cohn 



Bacillus Cohn Rhizobium Frank 



Bacterium Ehrenberg Sarcina Goodsir 



Chromobacterium Bergonzini Spirillum Ehrenberg 

 Clostridium Prazmowski Staphylococcus Rosenbach 



Erythrobacillus Fortineau Streptococcus Rosenbach 



Leptotrichia Trevisan Vibrio Mueller 



Its work so far as possible being completed, we recommend 

 that the Committee on Characterization and Classification of 

 Bacterial Types be discharged and that a new Committee on 

 Bacterial Taxonomy be appointed (1) to study and report to the 

 Society from time to time in regard to problems of nomenclature, 

 including such revisions of the nomenclature in the present report 

 as may seem necessary; and (2) to take the proper steps to se- 

 cure action at the next International Botanical Congress leading 

 to the general ends contemplated in the 1916 recommendations 

 of the Society: 



