 "History of the county of Cumberland and some places adjacent", 1794).He and some friends rowed a boat to the middle of Ullswater and fired cannons to hear the echoes reverberate around the valley.For Nicholson, this was the high-water mark of the Picturesque as an egoistical "sounding-board" – concern, not for the landscape of people of the area, but for their own sensations.