Chapter XII: XIII. On The Attraction Of Composition

[5th edn. XIV, XV = 4th edn. X, XI]

XIII. On Compound Bodies.
XVI. On Acids.
[Most of XIII, On Compound Bodies, became XVI, On Acids.
Some introductory material was moved to XIV, On Alkalies.]

XIV. On The Combinations of Oxygen with Sulphur and with
Phosphorus; and of the Sulphats And Phosphats.
XVII. Of the Sulphuric and Phosphoric Acids: or, The
Combinations of ....

XV. On The Combination of Oxygen With Nitrogen and with
Carbone; and of The Nitrats And Carbonats.
XVIII. Of The Nitric And Carbonic Acids: Or The Combination ...

XVI. On Muriatic And Oxygenated Muriatic Acids; and on Muriats.
XIX. On The Boracic, Fluoric, Muriatic, and Oxygenated Muriatic
Acids; and on Muriats.