As the summer of 1806 wore on, his policy perceptibly hardened.
One of his legs twitches just perceptibly, but rapidly.
It fuses considerably below and is perceptibly volatile at a red heat.
The Odyssey is in this respect perceptibly below the level of the Iliad.
In' 154 fell Damascus, and the crescent closed perceptibly in the north: the most valuable ally of the kingdom was lost, and the way seemed clear from Aleppo (the peculiar seat of Nureddin's power) into Egypt.