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Further to a recent paper about the work of George Sinclair (c . 1630–1696), new biographical information has come to light. Following one year of study at St Andrews, Sinclair obtained a Master of Arts degree at Edinburgh University in 1649. Later, after his enforced resignation as a Regent at Glasgow University in 1666, he taught mathematics at Edinburgh University, without swearing the prescribed oath of allegiance. This employment terminated in 1674 with the appointment of James Gregory to Edinburgh's first established chair of mathematics. The interest of Robert Hooke in Sinclair's hydrostatical work is also noted.

The hydrostatical works of George Sinclair ( c . 1630–1696): an addendum