“Neutral salts, Cavendish's starting point... were... composed of {{w|acid}}s and other substances, mostly {{w|alkali}}s, that were without acidity. Not long before, all of the known neutral salts could be listed in a table of twelve... the possible combinations of the four known acidic salts and the three known alkaline salts. Just as Cavendish began to work... the tidy, managable table... was fast expanding. The empirical field of salts was recognized as highly undeveloped...”