REVIEW OF CHAPTER IV. 



What is a ship-yard ? A place where ships are built? 



Where are ship-yards located ? On the sea-coast or the bank of a 

 river. 



Mention some of the parts of a ship. The keel, ribs, sides, deck, 

 hull, masts, and sails. 



What is the difference between steamships and sailing vessels? 

 Steamships go by steam and with the aid of sails ; sailing vessels, only 

 by means of the sails. 



Of what are steamships mostly built? Iron. 



What do ships carry from this country to Europe in large quan- 

 tities ? Cotton, corn, wheat, butter, cheese, petroleum, beef, and pork. 



What ocean do these ships cross ? The Atlantic. 

 In what direction do they sail going there? East. 



How long a time does it take a steamship to cross the Atlantic 

 Ocean ? About ten days. 



How long does it take a sailing vessel ? A month or more. 



What warm stream in the ocean do these ships sail in or across? 

 The Gulf Stream. 



Name some parts of a steamship's machinery ? Furnaces, boil- 

 ers, cylinder, working-beam, propeller or screw, the steam and smoke- 

 pipes. 



Mention the largest steamship ever built? The Great Eastern. 

 What is an iron-clad war vessel ? A vessel with very thick sides 

 covered with iron to resist cannon-balls. 



Mention two celebrated iron-clads. The Merrimac and the 

 Monitor. 



What is a dock ? A place where ships load and unload. 



What is a dry-dock? One from which the water may be with- 

 draws.. 



