18. An Account of some New Experiments on the Fluoric Compounds; with some Observations on other objects of Chemical Enquiry.February 13, 1814.

19. Some Experiments and Observations on a new Substance, which becomes a Violet-coloured Gas by heat.January 20, 1814.

20. Further Experiments and Observations on Iodine.Read June 16, 1814.

21. Some Experiments on the Combustion of the Diamond, and other Carbonaceous Substances.June 23, 1814.

22. Some Experiments and Observations on the Colours used in Painting by the Ancients.February 23, 1815.

23. Some Experiments on a solid Compound of Iodine and Oxygen, and on its Chemical Agencies.April 20, 1815.

24. On the Action of Acid upon the Salts usually called Hyper-Oxymuriates, and on the Gases produced from them.May 4, 1815.

25. On the Fire-damp of Coal Mines, and on methods of lighting the Mine, so as to prevent Explosion.November 19, 1815.

26. An Account of an Invention for giving Light in Explosive Mixtures of Fire-damp in Coal Mines, by consuming the Fire-damp.January 11, 1816.

27. Further Experiments on the Combustion of Explosive Mixtures confined by Wire Gauze, with some Observations on Flame.January 25, 1816.