Having gas lamps installed would have been a big jump in technology for the time - Nat has mentioned a week or so back about having to work by oil lamp / candle light. I guess we are used to technology nowadays, but this would have been big for Nat.
I was puzzled by that entry and the way he phrased it -
Monday 24th August 1846
Worked by candle light for first time since Midsummer owing to the scamp of coalheavers leaving us with one gang only.
Scamps were thieves, so were coal-heavers being poached by some underhand means, leaving them short-handed, and short of coal?
Did the wharf have a gas generator of it's own but didn't have the coal supply to power it, so that he had to resort to candles?
Puzzling,
Colin