James Watt and the Rat's Whiskers.
Mrs Schimmelpenninck in her youth lived at Birmingham, where she often met James Watt. In her autobiography (p. 34), she says, "Everybody practically knew the infinite variety of his talents and stores of knowledge. When Mr Watt entered a room, men of letters, men of science, nay, military men, artists, ladies, even little children thronged round him. I remember a celebrated Swedish artist having been instructed by him that rats' whiskers made the most pliant and elastic painting-brush; ladies would appeal to him on the best means of devising grates, curing smoky chimneys, warming their houses, and obtaining fast colours. I can speak from experience of his teaching me how to make a dulcimer, and improve a Jew's harp."