Note 250 — The Joviall Crew.244 or Beggars-Bush.
Reading edition
A jack was usually made of pear tree, and rested on the back end of the key lever. It had a movable tongue of holly working in a centre and kept in its place by a bristle spring. A thorn or spike of crow quill projects at right angles from the tongue. On the key being depressed, the jack is forced upwards, and the quill is brought to the string, which it twangs in passing. Queen Elizabeth's virginal has fifty jacks and quills.