Assertion: round mirror | /r/HasProperty | hung by single fibre of floss silk
Facets:
value: in the heart of that coil
type: LOCATION
value: within a little air-chamber
type: LOCATION
value: with four tiny magnets
type: OTHER
Source sentences:
text: In the heart of that coil, within a little air-chamber, a small round mirror is hung by a single fibre of floss silk, with four tiny magnets cemented to its back.