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 A TRACK CRANK CARRYING A PROPELLER FROM THE MACHINE SHOP TO A SHIPWAY 



TO P>E PITTED ON THE SHAFT 



The military police are conspicuous in many shipyard pictures nowadays. Every precau- 

 tion is taken against enemy bomb outrages. A stick of dynamite in a shipbuilding plant is 

 as much to be dreaded as a Whitehead torpedo at sea. 



190 



