10 CAPTAIN ZACHARY G. LAMSON 



wharfage dues, supplies furnished and the 

 thousand things necessitated by a bustling 

 commerce are really a tax laid on such 

 commerce and tend to the growth and 

 wealth of the place of entrepot. A forced 

 entrepot is where a country, having the 

 monopoly of certain products, restricts their 

 importation to certain ports and forbids 

 their sale elsewhere. 



By the Navigation Act then, trade with 

 the colonies was strictly guarded and the 

 products of the East and West Indies could 

 be freighted only in English ships. But 

 as the American colonies grew in wealth 

 and population, it was found impossible 

 to prevent their trading with their near 

 neighbors, the West Indies, and the navi- 

 gation laws were modified in their favor. 

 Direct trade between the West Indies and 

 the American colonies was allowed, but 

 limited to vessels of not over seventy tons 

 burden. A direct voyage between the West 

 Indies and England or any other country 

 by colonial vessels was prohibited. When 



