ECONOMIC SOCIAL 95 



United States, received letters equivalent to 

 a register and were called sea letter vessels. 

 The growth of American tonnage was 

 very rapid from 1800 to 1808, when the 

 embargo for a time checked its increase, 

 and just before the War of 1812 it reached 

 its highest figure. The amount of registered 

 tonnage for the year 1800 was in round 

 numbers 670,000 tons, and the licensed and 

 enrolled 245,000 tons. In 1807 the regis- 

 tered amounted to 848,000 tons and the 

 licensed and enrolled to 318,000 tons, and 

 in 1811 the registered is given as 768,000 

 tons and the enrolled and licensed as 

 386,000 tons. 1 



1 These statistics are taken from Pitkin's American 

 Commerce. 



TABLE I 



TONNAGE OF UNITED STATES PORTS 



