EEPOET OF THE SECBETAEY. 



59 



institutes, and museums in the United States, and transmitted to sim- 

 ilar institutions in all parts of the world. 



Tons 



1850-54 



1855-59 



1860-64 



1865-69 



1870-74 



875-79 



1880-84 



885-89 



189034 



895-99 



900-04- 



905-09 



910-12 



1350 





























1300 





























1250 





























1200 





























1150 





























1100 





























1050 





























1000 





























950 





























900 





























850 





























800 





























750 





























700 





























650 





























600 





























550 





























500 





























450 





























400 































350 















.., 















300 





























250 





























200 





























150 





























100 





























50 





























Diagram showing increase of exchange transmissions, in tons of 2,000 pounds, from 1850 

 to 1912, divided into periods of five years each. 



For purposes of comparison, the number and weight of packages 

 of different classes are indicated in the following table : 





Packages. 



Weight. 





Sent. 



Received. 



Sent. 



Received. 





136,722 





Pounds. 

 128,253 



Pounds. 



Publications received in return for parliamentary documents.. . 



2,425 



17,794 



United States departmental documents sent abroad 



72, 438 



180,990 





Publications received in return for departmental documents 



9,452 



19, 113 



Miscellaneous, scientific, and literary publications sent abroad. . 



56,110 



113,593 





Miscellaneous, scientific, and literary publications receivedfrom 

 abroad for distribution in the United States 



38,345 



108, 969 











Total 



265, 270 



5n.922 



422,836 



145.87fi 











315, 492 



568,712 





