7. With respect to Papers signed with initials, there were two methods : to 

 arrange them by the first or by the last letter. The latter course has been adopted, 

 on the presumption that the last letter was the initial of the Author's family name, 

 as the others were of his Christian names. By this means it has been found possible 

 to identify the Authors in several cases. 



8. The Titles of Anonymous Papers will be printed under a separate head at 

 the end of the first part of the present work. 



9. The chronological arrangement of the Papers written by any one Author is 

 determined by the date of the volume in which each is printed, and not by that 

 of the reading. 



When a Memoir is found in more than one Serial Work, the additional references 

 are placed alphabetically. 



d. Abbreviation, Supply, or Translation of Titles in certain cases. 



In the few instances in which very long Titles have been curtailed, the first words 

 of the Title are given at such length as to make identification easy, and the abbre- 

 viated Title, if any, employed in the work itself has been adopted. 



When communications appear without a Title, or are merely described as a note 

 or letter from the Author, a Title has been supplied by the Compiler. Such Titles 

 are distinguished by being enclosed within brackets. 



In general, Titles are entered in the Catalogue in the languages in which they were 

 written. An exception occurs in the case of Russian, Polish, and Hungarian Titles, 

 the first few words of which are given (so as to identify the paper), followed by a 

 translation into English enclosed within brackets. 



e. Mode of dealing with Reprints, Translations, Abstracts, and Reports. 



It was at first intended to index original Memoirs only, to the exclusion of 

 Reprints and Translations, but it was soon perceived that the value of the Work 

 would be greatly increased if the original reference were supplemented by references 

 to other sources where Reprints and Translations might be found. It will sometimes 

 happen that scientific students may have access to Journals containing reprints of 



