CATALOGUE OF BOTAXICAL LITEEATUEE. 5 



a few entries for scientific serials or society publications, as they 

 chanced to be referred to, were added to the author catalogue, but 

 during the last year the matter has been taken up Systematically, 

 and a separate serial list has been made giving information as to the 

 location of the sets in the larger libraries of AVashington, The se- 

 rial list consists of an alphabetical list, with full cross references, of 

 general scientific serials and society publications, followed by a 

 roughh^ classified list of serials under the headings " Botanical," 

 " Horticultural," '^ Microscopical," and "" Pharmaceutical." Serials 

 dealing with plant pathology, pomology, and tropical agriculture are 

 included under the heading *" Horticultural." 



The serial list will be further enlarged and compared with other 

 libraries in the city and promises to be a valuable adjunct to the 

 catalogue. 



ARRANGEMENT. 



The author catalogTie is arranged alphabetically as a dictionary 

 catalogue, but editions and translations are arranged chronologically 

 after the original edition, the original title being penciled at the 

 top of the card in the case of a translation or edition with change of 

 title. Cross references are made from differing titles to the original. 

 In the case of voyages and explorations of which there have been 

 a great number of editions or translations, cards for the earliest 

 edition with the English translation and possibty some other im- 

 portant editions are filed in the catalogue, and a card giving in brief 

 additional editions and translations available in the Library of Con- 

 gress is filed with them. Authors treated as subjects (biography 

 and bibliography) are found in the author catalogue, not in the sub- 

 ject catalogue; the same is true of institutions, botanical gardens, etc. 



THE SUBJECT CATALOGUE. 



The subject catalogue has grown verj" rapidh^ since its inception, 

 and it is the intention to make it as complete as possible. It repre- 

 sents a few subjects for which no cards appear in the author cata- 

 logue, such as atlases and general bibliogiMiphies of countries, entries 

 which are of use only on the subject side ; on the other hand, only a 

 IDortion of the Torrey Club index cards have as yet had subject en- 

 tries made for them. 



ARRANGEMENT. 



The subject catalogue is a semiclassed catalogue, divisions and sub- 

 divisions of large subjects being made within the alphabetical ar- 

 rangement. Xames of genera are arranged under the family, the fam- 

 ily names appearing in their regular alphabetical place. Small geo- 

 graphical divisions are arranged under the country to which they be- 

 long, as, for example, under '^ Germany " will be found " Germany — 

 Bavaria," " Germany — Munich," " Germany — Prussia," '' Germany — 

 Rhine Valley." The United States is arranged first under the United 

 States as a whole, then under large divisions, as '' Xew England," 

 " Southern States," '* Eocky Mountain Eegion," etc., and then under 



[Cir. 87] 



