254 



Authors' Catalogue. 



47. The Regional Bureaus are requested to rule a vertical blue 

 line near the left-hand edge of the slips intended for the Authors' 

 Catalogue. 



48. Every slip shall have very distinctly written or printed 

 on its left hand top corner the registration letter indicating the 

 science to which it belongs {_e.g., A for Mathematics, B for 

 Mechanics, &c. See 8]. 



Particular care should be taken to see that this letter is 

 correct, since an error in this respect may delay the publication 

 of the slip for a whole year. 



49. When it is desired that the title of a paper should appear 

 in the Authors' Catalogue of more than one science, a separate 

 slip for the Authors' Index must be written for each of the sciences. 

 These slips would differ only in the Registration Letters. 



50. Where, however, the Regional Bureaus consider it desirable 

 to index a paper in the Catalogue of more than one science, they 

 are to indicate the order of importance of the entries by numbers 

 within round brackets, e.g. (1), (2), (3), placed immediately under 

 the Registration Letter. The Central Bureau will then under- 

 stand that the entry (1) is the most important, (2) of next 

 importance, and (3) of least importance. 



In such cases the Central Bureau will publish the entry 

 marked (1), and as many of tlie other entries as space may 

 permit. 



5L The first entry upon a slip for the Authors' Catalogue 

 being the Registration Letter, the second is the Author''s Name. 



The author's surname should be given first, followed by his 

 Christian (or other) names. If these are not given in full on the 

 title page, but are lepresented by initials or are not given at all, 

 the}^ are to be supplied if known with certainty, but the parts 

 added must be enclosed within square brackets ; initials must, 

 however, be given, or contractions such as Fr. or Ch,, where 

 these only are known. The name so completed must, however, 

 never contain more than the Christian names habitually used by 

 the author. 



In no case should the Christian name be written where it is 

 only guessed, since greater confusion is produced by incorrect 

 Christian names, than by omitting these altogether. 



The object of giving the Christian names and not initials only, 

 is to enable the work of each author to be placed together. The 

 need for care that the Christian name is correct is therefoi'e 

 obvious. 



52. Author's surnames should have a waving line under them 

 -, or they may be printed in Clarendon or thick type, 

 e.g., Konig, Franz Josef. 



