90 Book of Steamships 



furnaces by various methods in order to 

 get more intensive combustion. 



The engines of the Scotia call for an 

 especial word, representing as they did, 

 not the last phase of the paddle-wheeler 

 the end is not yet but the last phase on 

 the Atlantic. 



The engines were of the usual side- 

 lever type with two cylinders, each having 

 a diameter of 100 ins., with a i2-ft. stroke. 

 A horse-power of 4,000 was indicated, 

 which marks a great advance upon the 

 Britannia of rather more than twenty 

 years before. On the other hand there 

 was the increased speed demanded, and, 

 more particularly, the greater tonnage to 

 consider, the latter more than three times 

 of the pioneer steamer of the Cunard fleet. 

 The paddle-wheels were huge indeed, 

 measuring 40 ft. across. The boilers were 

 eight in number, fed by 40 furnaces, which 

 required 160 tons a day to drive the ship 

 at her scheduled speed of 13! knots. The 

 steam pressure was still very low 20 Ibs. 



