Discovering Water: James Watt, Henry Cavendish and the Nineteenth-Century 'Water Controversy'

The 'water controversy' concerns one of the central discoveries of modern science, that water is not an element but rather a compound. The allocation of priority in this discovery was contentious in the 1780s and has occupied a number of 20th century historians. The matter is tied up with the larger issues of the so-called chemical revolution of the late eighteenth century. A case can be made for James Watt or Henry Cavendish or Antoine Lavoisier as having priority in the discovery dependin...