THE GROWTH OF THE STEAM-ENGINE. 



543 



with her stores, 5,000 or 6,000 tons, as she starts on her voyage, 

 moved by engines more than equal in power to the united strength 

 of 5,000 horses. Nothing can more thoroughly awaken a feeling of 

 awe than the sight of immense structures like the great modern iron- 

 clads (Fig. 65), vessels having a total weight of 8,000 to 10,000 tons, 



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and propelled by steam-engines of 8,000 or 10,000 horse-power, carry- 

 ing guns whose shot penetrate solid h'on fifteen inches thick, and 

 having a power of impact, when steaming moderately, sufficient to 

 raise 35,000 tons a foot high. 



108. Far more huge than the Monarch among the iron-clads even 

 is that prematurely-built monster, the Great Eastern (Fig. 66), more 



