manager. of the Etna Works, asked us closed in a wooden tank containing water. In the condenser the ether vapor, which has if-we would like to see the piece broken off the tool forged. become heated by its compression, parts with We need scarcely say that our answer was in the affirmative. its heat… … practicable amount of clearance is allowed | was heated to cherry red by an: experienced smith, placed on between the piston of the pump atthe ends the anvil, and struck witha sledge by the striker. ‘The strik- of the stroke and the cylinder covers, and er produced no effect on the lump of any…
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