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They put on new phases, they adjust themselves to new forms of business, and constantly devise new methods of fraud and robbery, just as burglars devise new artifices to circumvent every new precaution of the lock-makers.
With the sanction of the British Government, he at the same time furnished the Swedish contractors with patterns of the most improved tools used in canal making, and took with him a number of experienced lock-makers and navvies for the purpose of instructing the native workmen.