He could see puffs of musketry smoke that seemed to chase one another down the hillsides, and clouds of cannon smoke rolling, spreading, and mingling with one another.
Where the carbon, in thus diffusing inwards, meets particles of the slag, a basic ferrous silicate which is always present in wrought iron, it forms carbonic oxide, FeO+ C = Fe+CO, which puffs the pliant metal up and forms blisters.
The enemy's guns were in his fancy not guns but pipes from which occasional puffs were blown by an invisible smoker.
These puffs of smoke and (strange to say) the sound of the firing produced the chief beauty of the spectacle.
Her sandals raised little puffs of dust every time she put a foot down in the soft dirt.