44 Book of Steamships 



was followed, in the same year, by the 

 Enterprise a vessel almost three times 

 her tonnage. Both these vessels helped 

 forward the growing-tip of the steamship, 

 because they clearly demonstrated that 

 steam could be utilised on a very long 

 trip. 



But we must not overlook the fact 

 that, as in the case of the Savannah, 

 steam in these boats was purely an aux- 

 iliary agent and not the regular source 

 of propulsion. 



Just as to-day you will see many sailing 

 craft fitted with an auxiliary motor to 

 save loss of time when the wind is light, 

 so were the first steamships of the period 

 at which we are looking fitted with an 

 auxiliary means of progress through the 

 seas. Only when it became worth while 

 were engines set going to aid the sails. 



One other step forward we must notice 

 as proper to the 'twenties of the last 

 century. This was an entire change in 

 the lines of the hull of the steam-sailing- 



