Document Title: Unpublished experiment, showing the sympathetic vibration of guitar strings.
Related Material: See Works, vol. 10, p. 280.
Extent: Fols. 52-5 (4 leaves)
Date: 1650s or early 1660s
Description: Similar in content to Languid Motion, chapter VII, paragraph 2; perhaps this is the discussion cited there obliquely.
Physical Description: Manuscript