26 REPORT OF THE SECRETARY. 



As in previous years, the Institution has received great benefit from 

 the privileges of free freight for its packages, accorded by a large number 

 of steamboat and railroad lines of transportation. In this report, as in 

 former ones, reference should be made to the liberality of the Pacific Mail 

 Steamship Company ; of the Panama Railroad Company ; of the Pacific 

 Steam Navigation Company ; of the New York and Mexican Steamship 

 Line ; of the New York and Brazilian Line ; of the North German Lloyds ; 

 of the Hamburg American Packet Company ; of the French Transatlan- 

 tic Company ; of the Inman Lhie ; and of the Cunard Line. I am happy 

 to announce that to the foregoing list is to be added the Anchor Line of 

 steamers between New York and Glasgow, of which Messrs. Henderson. 

 & Brother are the New York agents ; and I would recommend that an 

 official acknowledgment be made, on the part of the board, to these gen- 

 tlemen for their courtesy in offering to the Institution the same privileges 

 accorded by the other New York lines. The Union Pacific Eailroad 

 Company has granted free transportation, although thus far we have not 

 been able to avail ourselves of the privilege. The Adams Exi^ress Com- 

 pany also continues its liberal policy in regard to our freight. It would 

 be quite impossible for the Institution, without the aid thus liberally 

 afforded, to carry out, in its full efficiency, its system of international 

 exchanges, which, by facilitating the intercourse of scientific institutions 

 and of students throughout the world, constitutes one of ks most impor- 

 tant features. 



It is also my duty, as well as a great personal gratification, to inform 

 you of the liberality of several of these companies, extended to myself 

 on the occasion of the visit to Europe which I made during the past 

 summer, in obedience to your authority ; the agents of the North Ger- 

 man Lloyds, Messrs. Schumaker & Co., of Baltimore, and Messrs. Oel- 

 richs & Co., of New York, as well as Mr, C. G. Prancklyn, the agent of 

 the Cunard steamers, having offered me a free passage across the ocean. 



Library. — As in previous years, large accessions have been made to 

 the library of the Institution, principally through the system of interna- 

 tional exchanges. The following is a statement of the number of books, 

 maps, and charts received during 1870, most of which have been depos- 

 ited in the National Library in accordance with the arrangement en- 

 tered into several years ago, and fully explained in xireceding reports: 



Volumes : 



Octavo or less 842 



Quarto or larger 270 



1, 113 



Parts of volumes : 



Octavo or less , 1, 263 



Quarto or larger 501 



1, 824 



