Browne's eldest son Edward visited the famous scholar Athanasius Kircher, founder of the Museo Kircherano at Rome in 1667, whose exhibits included an engine for attempting perpetual motion and a speaking head, which Kircher called his Oraculum Delphinium.
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Musaeum Clausum (Latin for Sealed Museum), also known as Bibliotheca abscondita, is a tract written by Sir Thomas Browne first published posthumously in 1684.
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Browne was an avid collector of antiquities and natural specimens possessing a supposed unicorn's horn, presented to him by Arthur Dee .
The lyrics of "Batwings (A Limnal Hymn)" have many references to Musaeum Clausum written by Sir Thomas Browne.