﻿EIGHTEENTH ANNUAL REPORT OF THE DIRECTOR. 21 



ican Horticulture, and accompanied by extensive manu- 

 script notes accumulated during his study of these plants 

 for the Cyclopedia. 



The card index has been enlarged by the addition of 

 90,817 cards, of which 78,520 were written by employees; 

 11,434 were purchased; and 863 were presented. 



The distinct serial publications now received number 

 1,359, of which 95 are bought, and 1,264, issued by 905 

 institutions or publishers, are received in exchange for the 

 Reports of the Garden. This number is 122 larger than 

 that reported a year since, partly through the addition of 

 new journals and partly because of the restoration of ex- 

 change relations which had lapsed. 



As now constituted, the library contains: — 



Pamphlets 31,577 



Books 23,241 



54,818 valued at . . . $82,400 73 

 Manuscript volumes ... 77 " " . . . 910 00 



Total . . 54,895 " "... $83,310 73 

 Index cards 571,253 " "... 5,712 53 



Total valuation of library ...... $89,023 26 



RESEARCH AND THE USE OF FACILITIES. 



Such time as could be spared from their immediate duties 

 has been given to investigation by a number of Garden 

 employees, by whom scientific papers have been published 

 or are in course of preparation. The use of Garden facil- 

 ities by visiting botanists and the loaning of material to 

 those unable to come to St. Louis but desiring it for their 

 studies, have been on about the same scale as for several 

 preceding years. 



