100 Royal Societtj's Catalogue of Scientific Literature. [Aug., 



to the Central Bureau in London, to be checked according to the sanc- 

 tioned schedules, and then printed, first in slip form and finally in book 

 form for issue to the subscribers. 



Primary slips: — The slips forwarded to the Centi\al Bureau from 

 each region will be known as primary slips, and when these bear more 

 than one registration letter, or more than one subject-entry (indicating 

 that more than subject is treated in the publication it refers to), copies 

 will be printed, with or without alteration in the arrangement of the 

 subject-entries, to permit the production of a full card catalogue 

 for each subject. Such copies of the primary slip will be known as 

 secondary slips and will be prepared entirely in the Central Bureau. 



The Regional Bureaux will be responsible merely for the prepara- 

 tion of the primary slips, each of which is to contain : — 



(i) A Title-entry — giving the author's name and the full title of 

 the communication, in the original language alone if the 

 language be either English, French, German, Italian or 

 Latin. In the case of other languages, the title will be, 

 as far as the Regional Bureau for India and Ceylon is 

 concerned, translated into English ; but the original title 

 will also be added, either in the original script, or transli- 

 terated into Roman script. The title will be followed 

 by every necessary reference, including the year of publi- 

 cation, and such other symbols as may be determined. 

 In the case of a separately published book, the place and 

 year of publication, and the number of pages, &c., will 

 be given, 

 (ii) Subject -entries — indicating as briefly as possible the principal 

 subjects to which the communication refers. Such subject- 

 entries will be given only in the original language of the 

 communication if this be one of the five previously referred 

 to, but in other cases in India and Ceylon, English 

 will be used. 

 The following specimens of primary slips prepared by the Royal 

 Society's Committee will serve as a guide to Authors, Avho, it is hoped, 

 will assist the local committee in their preparation : — 



Specimen Primary Slips. 

 Mineralogy. q 



FooTE, H. W. On the occurrence of Pollucite, Columbite, and 

 Microlite at Rumford, Maine. Am. Journ. Sci., 1896 (iv), 1 467. 

 Pollucite. From Rumford, Maine. Anal. 

 Mangano-columhite. From Rumford, Maine. Cryst. 



