PREFACE. TIL 



capitals, the word or words under which the primary entry is made, with the addition 

 of the date, so that the book may be easily identified. The following example will be 

 sufficient to show the rule which has been adopted : 



Primary Entry. 



TOLERATION. Toleration discussed ; in two 

 dialogues. I. Betwixt a conformist and a non- 

 conformist. II. Betwixt a Presbyterian and 

 an Independent. [By Sir Roger L'ESTRANOE. J 

 London, 1670. 8 d 



Secondary Entry. 



L'ESTRANGE (Sir ROGER). TOLERATION dis- 

 cussed ; in two dialogues. 1670 



II. PSEUDONYMOUS BOOKS. 



The principle which has been followed in cataloguing the works of authors with 

 assumed names is that of entering the work under the real name, when it has been dis- 

 covered, and under the assumed name, when it has not. The application of this principle 

 can be attended with no difficulty. In every case, the Pseudonyme takes its alphabetical 

 place in the Catalogue. If the real name has not been ascertained, the entry will be 

 found under the name assumed. If the real name has been ascertained, the reference 

 from the assumed name is so printed as to lead at once to the heading under which the 

 entry is given. 



IIL THE ARRANGEMENT OF AUTHORS* WORKS. 



In all cases where the collected works of an author occur, they take the first place 

 under the author's name, irrespective altogether of the date of their publication. These 

 are followed by the separate works in chronological order, an arrangement qualified, 

 of course, by the natural requirement that parts and volumes, if entered separately, as 

 well as the several editions, shall succeed each other in numerical order. 



IV. TITLES. 



Under the impression that an author knows best both the subject and the object of 

 the book which he has written, and is entitled to convey that knowledge to others in 

 language of his own selection, no attempt has, in any case, been made to change the 

 words of a title ; nor have the titles been materially abridged. Occasionally, a little 

 curtailment has been found advisable, and this has generally been indicated by the use 

 of points (...) substituted for the parts omitted. But the shortening of titles has been 

 almost uniformly avoided, as leading, in the great majority of cases, either to positive 

 misapprehension, or as failing to convey anything except the most inadequate concep- 

 tion of the contents of the Library. The light, moreover, thrown upon the history of 

 literature generally, as well as upon the history of controversies, by the fulness and 

 accuracy with which the titles of books are given, is greater than is perhaps generally 

 believed. For all these reasons, it has been deemed an object of importance, not only 

 that the books should be found as readily as possible, but that the subjects and objects 



