92 



REPORT ON EXCHANGES. 



The following chronological table shows the whole number of books 

 and parcels receiveil by the Institution for its own Ubrary (by exchange) 

 and for domestic distribution : 



Year. 



1846-1850 



1851 



1852 



1853 



1854 



1855 



1850 



1857 



1858 



I8r)9 



18G0 



18(!1 



18(52 



1H()8 



1864 



1865 



Received fur the Siuitbsoniau library. 



Volumes. 



1866 

 1867 



1868 

 1869 

 1870 

 1871 



],S72 

 1873 

 1874 

 1«75 

 1876 

 1877 

 1878 

 1879 

 1880 

 1881 

 1882 

 1883 



1884 



1885 (six months) .. 

 1885-'86 (fiscal year) 



Total 



470 



549 



1,4H1 



1,440 



<!2(; 

 1 , o:;7 



l,3.-)6 

 555 

 723 



1 , 022 



1,271 

 >'-21 



1,611 

 910 



.-2;> 



767 

 1,243 

 1 , 557 

 1,770 

 1,234 

 1,113 



936 

 1.262 



8a9 



H63 

 1,120 

 1,017 

 1 , 8f^9 

 1,263 

 1,949 

 1, 143 

 1 , 8()7 

 1 , 29() 

 1,754 

 1, 567 



910 

 1,938 



44, 342 



Parts 

 and pam- 

 phlets. 



024 



618 

 2, 106 



991 

 1,468 

 1 , 707 

 1,834 

 1,067 

 1,695 

 2, 540 

 4, l.sO 



1 , 945 

 3, 369 

 3, 479 



2, 754 

 3, 256 

 4,. 509 

 3, 946 



3, 605 

 4,089 

 3, ^90 

 3, 579 

 4,502 

 4,354 

 4,521 

 5,813 

 (J, 193 

 (i,511 

 7.392 

 8,071 

 7, 275 

 9, 904 



10,341 

 10,702 

 11,149 

 9,077 

 13, 949 



177,00;'; 



Maps 

 and eu- 

 ECravinjjs. 



1,749 

 125 

 434 



26 

 140 

 138 

 122 



40 

 220 

 120 



55 

 200 

 109 

 183 

 121 

 328 

 134 

 232 

 179 



82 

 198 

 4.54 

 162 

 114 

 375 

 326 



74 

 183 

 152 

 188 

 152 

 219 

 143 

 354 

 379 



8,214 



Total. 



1,098 

 1,167 

 5, 336 

 2, 556 

 2. 826 

 2, 770 

 3, 330 

 1,760 

 2, 540 



3, 602 

 5,071 

 2,886 

 5, 035 

 4, 589 

 3, 686 

 4,206 

 5, 873 

 5, 831 

 5, 509 

 5, 555 

 5, 182 



4, 597 

 5, 962 

 5, 697 



5, 546 

 7,047 

 7, 585 

 8, 726 

 8, 729 



10,203 

 8, .570 

 11,9.59 

 11,789 

 12, 675 

 12, 859 

 10,341 

 16, 266 



Addresses, 



229, 561 



For institntious aud 

 individuals in the 

 United States and 

 British America. 



96 

 160 

 149 

 219 

 1H9 

 193 

 243 

 293 

 335 

 274 

 273 

 273 

 299 

 345 

 329 

 347 

 436 

 501 

 567 

 573 

 587 

 6-^9 

 750 

 010 

 644 

 766 

 062 

 785 

 945 

 1,054 

 947 

 894 

 770 

 1,208 

 1,666 



18, 771 



Packages. 



037 

 1,052 



987 

 1,445 

 1,245 

 1,273 

 1,539 

 1,933 

 1,908 

 1,406 

 2,111 

 1,.522 

 2, 482 

 2, 3()8 



2, 703 

 971 



2, 394 

 4, 130 



3, 705 

 3, 952 

 4,635 

 4.782 



4, 326 

 4,661 

 4, 853 

 4.962 

 5, 292 

 6, 971 

 5, 587 

 8, 433 

 8, 359 



11,000 



10, 236 



5, 119 



14, 496 



143, 975 



AGENCIES. 



Transportation companies. — The rajnd extension of the Smithsonian 

 exchanges soon became a heavy tax upon the resources of the Institu- 

 tion, and the coiiduct of its principal function (''the increase of knoAV- 

 ledge among men " by the promotion of original research and discovery) 

 was threatened with being cri[)pled and overridden by the demands of 



