Pebecasy 27, 1914] 



SCIENCE 



321 



ica utique conservanda for the use of paleobotan- 

 ists. 



4. Discussion of motions relating to new points 

 which were not settled by the rules adopted at 

 Vienna in 1905 and at Brussels in 1910. 



The carrying out of this work has been en- 

 trusted to two committees under the direction 

 of a rapporteur general, Dr. J. Briquet 

 (Geneva), assisted by a vice-rapporteur. Pro- 

 fessor H. Harms (Berlin). In the compilation 

 of the lists of nomina conservanda. the rap- 

 porteur general will have the assistance of a 

 certain number of editors in each committee. 

 On these several committees the following 

 names of American botanists are found : 

 Dr. A. Evans, New Haven, Conn., XJ. S. A. (He- 



paties). 

 Professor A. J. Grout, 360 Lenox Road, Brooklyn, 



N. Y., U. S. A. (Mosses). 

 Dr. J. C. Arthur, Purdue University, Lafayette, 



Ind., V. S. A. (Fungi). 

 Professor G. F. Atkinson, Cornell University, 



Ithaca, N. Y., U. S. A. (Fungi). 

 Professor W. G. Farlow, Harvard University, Cam- 

 bridge, Mass.j U. S. A. (Fungi). 

 Dr. R. Thaxter, Harvard University, Cambridge, 



Mass., U. S. A. (Fungi). 

 F. S. Collins, 97 Dexter St., Maiden, Mass., U. S. 



A. (Alga;). 

 Dr. F. H. Knowlton, U. S, National Museum, 



Washington, D. C, U. S. A. (Paleobotany). 

 Oh. D. White, U. S. National Museum, Washing- 

 ton, D. C, U. S. A. (Paleobotany). 

 The circular further explains as follows: 

 The functions and program of work of these 

 committees are as follows: 



1. The Rules of Nomenclature adopted at A''ienna 

 in 1905 and at Brussels in 1910 remain in force. 

 Additions may be made to the present code only : 

 (1) in the form of rules bearing on new points not 

 covered by the decisions of 1905 and 1910; (2) in 

 the compilation of supplementary lists of nomina 

 generiea utique conservanda, and in fixing the 

 starting-point for the nomenclature of special 

 groups, as stated above. 



2. All motions must be presented iji the form 

 of additional articles to the rules of 1905-1910, 

 drawn up in French in the form adopted in the 

 International Code now in use. Lists of nomina 

 generiea must be drawn up in conformity with 

 the scheme adopted in the "Rules," edition 2. 



3. Motions must be drafted as briefly as possible 

 in Latin, French, German, English or Italian. So 



far as possible, statistics should be supplied, indi- 

 cating the consequences of the proposed motions. 



4. At least sixty printed copies of the motion 

 with the grounds of support must be sent to the 

 rapporteur general before April 30, 1914. 



5. Motions wiU be communicated by the rap- 

 porteur general to the members of the committees 

 as they arrive. The members of the committees 

 who were nominated at Brussels in 1910 are re- 

 garded as having accepted nomination, unless they 

 have expressly signified the contrary to the rap- 

 porteur. Committees may, in case of necessity, 

 co-opt new members who are specially competent. 



6. The rapporteur general will draw up, after 

 May 31, 1914, a critical and classified r^sumg of 

 the motions which have been submitted and of the 

 lists compiled by the special editors. He will sub- 

 mit this r&ume to eaeh member of the committees, 

 and will draft on the basis of the collected mo- 

 tions a supplement to the Rules of Nomenclature. 

 The work of the committees and of the rappor- 

 teur will be completed by November 30, 1914. 



7. This supplement to the ' ' Rules ' ' will be 

 sent out before January 1, 1915, to the principal 

 botanical societies, and to the important botanical 

 institutions in the different countries, and also to 

 the principal periodicals, particularly those which 

 specialize in cryptogamic botany and paleobotany. 



8. Motions which reach the rapporteur after 

 April 30, 1914, can be submitted to the Nomen- 

 clature Section of the Congress, only on condition 

 that at least one hundred printed copies are sent 

 to the president of the Section before the opening 

 of the discussion, and that a majority of two thirds 

 of those voting is in favor of their acceptance. 

 New motions presented during the discussion cam 

 be admitted only if a majority of two thirds of 

 those voting is in favor of their acceptance, ani 

 will not be voted upon until the next day. 



9. The rapporteur will preserve all the docu- 

 ments which have been used in the elaboration of 

 the proposed supplement to the ' ' Rules of Nomen- 

 clature. ' ' These documents will be available for 

 the use of the Congressists in London. 



10. The revision of the Rules of Nomenclature 

 has already occupied three congresses, namely, at 

 Paris, Vienna and Brussels, and by 1915 the rap- 

 porteur general will have followed their details for 

 fifteen years. It is highly desirable from all points 

 of view, that this work should be completed in Lon- 

 don in 1915, and should cease to occupy the Inter- 

 national Botanical Congresses. We, therefore, 

 urgently beg botanists in general, and cryptoga- 

 mists and paleobotanists in particular, to examine 



