The Leopard Woman stood just within the circle of illumination.
By experiment he found that at a distance of a foot or so the illumination registered.
Yet perhaps it was the illumination which gave so gloomy a cast to Amalia's features.
The illumination had seemed brilliant, now suddenly it was pale and dim.
Then, with a brazil nut candle for illumination, he began to write.
Thus, the illumination is the result of directly burning a fuel.
Darwin himself relates how illumination suddenly came to him.
Most of these were so deep that the illumination made them appear stronger by the contrast.
The embers also threw a slight amount of illumination into the room.
When the sun was hidden by clouds the illumination was perplexing.