SECRETARY'S REPORT 



79 



Chabt 1. — Comparative Weight of Packages Received for 

 Transmission Through the International Exchange Service 

 Between 1850 and 1964, hy 5-Year Periods 



A. INTERRUPTION TO THE SERVICE DUE TO WORLD WAR I. 



B. INTERRUPTION TO THE SERVICE DUE TO WORLD WAR U. 



