(sometimes canals of Havers, named after British physician Clopton Havers) are a series of tubes around narrow channels formed by lamellae.
Nigel Havers | Michael Havers, Baron Havers | Cecil Havers | Clopton House | Clopton Bridge | Hugh Clopton | Clopton's chapel | Clopton, Northamptonshire | Clopton Lloyd-Jones | Clopton Havers | Clopton | Barbara Havers |