William Hyde Wollaston (1766-1828), an English chemist, invented the reflecting goniometer in 1809, and described it in the Philosophical Transactions of the Royal Society of London. This example came from the U.S. Military Academy. The “Pixii / Rue du Jardinet No. 2 a Paris” inscription indicates that it was made before 1838, when the firm moved to a new location.
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