THE SMITHSONIAN INSTITUTION. 33 



3. Distributed througJi the Royal Society and Henry Stevens, London. 



4. Distributed by other parties. 



The number of foreign institutions to which full series of Smithsonian 

 publications were sent for 1854 amounted to 2C3, or five more than the 

 previous year. The list is necessarily subject to considerable varia- 

 tion, new names being added, and others taken off for non-compliance 

 with the regulations of the Institution, or other causes. An acknow- 

 ledgment of the reception of one package is imperatively required before 

 another is sent, and in the failure to meet this rule, some first class 

 institutions are dropped for one or two years, or until the omission is 

 rectified. 



There is no port to which the Smithsonian parcels are shipped where 

 any duties are charged on them, a certified invoice of contents from the 

 Institution being sufficient to carry them through the custom-houses 

 free of duty. 



Receipt of booh by exchange. — The additions to the library of the 

 Smithsonian Institution, by its exchanges, have been very marked during 

 the 3^ear. Attentioiv-was called in the last report to the very great 

 increase in our foreign exchanges, in consequence of the extension of 

 the list of recipients of Smithsonian publications. During 1854, the 

 works received have been fully equal in value to those of 1853, con- 

 taining actually a larger number of pieces, and binding up to a greater 

 number of volumes. The following table exhibits the record of this 

 department. The discrepancy between this record and that of the 

 Mis. Doc. 24 3 



