HISTORY OF THE SSHTHSONIAN EXCHANGES. 



725 



Dies at home and abroad, the co-operation of learned societies, and the 

 remission of duties and custom-house expenses by all nations, the act- 

 ual cost of these international exchanges to the Smithsonian fund has 

 reached for the last five or six years to fully one-fourth of its entire in- 

 come. 



Cost of exchanges to the Institution. 



184t,V1850. 



1851 



1852 



1853 , 



1854 



1855 



1856- 



1857 



1858 



1859 



1860 



1861 



1862'. 



1863 



1864 



1865 



1866 



$1, 603 00 

 2,010 49 

 2, 178 33 

 2,807 38 

 2,738 65 

 1, 930 78 

 1,517 54 

 2,500 24 

 1, 326 90 

 2,027 94 

 2, 348 04 

 1,499 47 

 2,724 88 

 1, 735 31 

 3,779 61 

 2,807 76 

 2,252 60 



1867. 

 1868. 

 1869. 

 1870. 

 1871. 

 1872. 

 1673. 

 1874. 

 1875. 



$3^701 93 



■ 4,870 72 



4,860 94 



4,165 62 



4,201 50 



5,870 32 



6,251 74 



5,589 89 



6,748 80 



1876 10,199 10 



1877 9,790 73 



1878 10,250 41 



1879 9,554 47 



1880 9,996 05 



1881 *7,467 84 



Total $141,308 98 



Shipments of foreign exchanges. — No. of boxes from 1850 to 1881. 



*TLe apparent redaction of expense for the last year (1881) is due to an appropria- 

 tion of $3,000 allowed by Congress in aid of the government exchanges. It thus ap- 

 pears that the average expense of the international exchanges for the last six years 

 has exceeded |10,000 per annum. 



