Candle How tall was the candle in lab next to clock ,have replica clock looking for a candle

I don't see a measurement in the text:

There were also perhaps a dozen candles about, two in brass candlesticks upon the mantel and several in sconces, so that the room was brilliantly illuminated. I sat in a low arm-chair nearest the fire, and I drew this forward so as to be almost between the Time Traveller and the fireplace.