22. Some Experiments and Observations on the Colours used in Painting by the Ancients. Read 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.

28. Some Researches on Flame.

January 16, 1817.

29. Some New Experiments and Observations on the Combustion of
Gaseous Mixtures; with an account of a method of preserving a
continued Light in Mixtures of inflammable Gases and Air, without
Flame.
January 23, 1817.

*** For the above five papers, the Rumford Medals were awarded to him. 30. On the fallacy of Experiments in which Water is said to have been formed by the decomposition of Chlorine.

February 12, 1818.

31. New Experiments on some of the combinations of Phosphorus.

April 9, 1818.

32. Some Observations on the formation of Mists in particular situations. February 25, 1819.

33. On the Magnetic Phenomena produced by Electricity.

November 16, 1820.

34. Some Observations and Experiments on the Papyri found in the ruins of Herculaneum. March 15, 1821.

35. Further Researches on the Magnetic Phenomena produced by Electricity; with some New Experiments on the properties of Electrified bodies, in their relations to conducting powers and temRead July 5, 1821.

perature.

36. On the Electrical Phenomena exhibited in vacuo.

December 20, 1821.

37. On the state of Water and Aëriform matter in cavities found in certain Crystals. June 13, 1822.

38. On a New Phenomenon of Electro-Magnetism.

March 6, 1823.

39. On the application of Liquids formed by the condensation of Gases, as mechanical Agents. April 17, 1823.

40. On the changes of volume produced in Gases, in different states of density, by Heat. May 1, 1823.

41. On the Corrosion of Copper Sheathing by sea-water; and on methods of preventing this effect, and on their application to ships of war and other ships. January 24, 1824.

42. Additional Experiments and Observations on the application of Electrical Combinations to the preservation of the Copper Sheathing of ships, and to other purposes.

June 17, 1824.

43. Further Researches on the preservation of Metals by Electrochemical means. June 9, 1825.

44. THE BAKERIAN LECTURE for 1826.-On the Relation of Electrical and Chemical changes.

June 3, 1826.

* For this memoir, the Royal Society conferred upon him the Royal Medal.

45. On the Phenomena of Volcanoes.

March 20, 1828.

46. Account of some Experiments on the Torpedo.

November 20, 1828.

544

LIFE OF SIR H. DAVY.

66

HIS PUBLISHED WORKS ARE,

Experimental Essays on Heat, Light, and on the Combinations of Light, with a new Theory of Respiration," &c. Published in Contributions to Physical and Medical Knowledge, by T. Beddoes, M. D. 1799.

"Researches Chemical and Philosophical, chiefly concerning Nitrous Oxide, and its Respiration." 1800.

"A Syllabus of a Course of Lectures."

"An Introductory Lecture." 1801.

"Elements of Chemical Philosophy." 1812.

"Elements of Agricultural Chemistry." 1813.

On the Safety Lamp for Coal Miners; with some Researches on Flame." 1818. (Several Editions).

"Salmonia; or Days of Fly-Fishing."

"Consolations in Travel; or the Last Days of a Philosopher."

APPENDIX.

EXTRACTED FROM THE REGISTRY OF THE PREROGATIVE COURT OF CANTERBURY.

A.

MY WILL.

This 3rd of January 1827 feeling more than usual symptoms of mortality I make this my Will. First, I give my Brother John Davy M. D. three hundred pounds a-year of money that I possess in the Long Annuities and likewise four thousand pounds to be raised by the sale of Securities I possess in the English or French funds or annuities,but I mean my said Brother to devote the interest of three thousand pound of these last moneys to such purposes as he may deem fitting for the benefit of my sisters particularly my married one and I wish a part of the interest of these three thousand pounds to be employed in educating and settling in life my godson Humphrey Millett. I leave him Dr. Davy likewise all the property devolving to me from my parents which has never been divided to do what seems to him best for the benefit of my sisters and my sister Millett's children and I leave my said brother my Chemical Books and Chemical MSS. Apparatus Sporting tackle Medals and the silver Venetian dish made from the Rumford Medal in token of my affection. I leave £100 to each of these friends Dr. Babington and Dr. Franck and £50 to Dr. Wilson Philip and to Mr. Brodie surgeon to lay out in tokens of remembrance. I leave all my other property whether in goods money chattells funded securities annuities or plate to my wife (Lady) Jane Davy and I appoint her the sole Executrix of this my Will. If my brother or his family should not be in a condition at the time of her decease to use my service of plate given for the safety lamp I wish it to be sold and the same given to the Royal Society to provide an annual medal from the interest for the best discovery made any where in chemistry and I depend upon my dear wife to make such presents in seals or token to such of my friends as she may think proper agreeably to their and her feelings.

B.

Further explanatory Clause.

I leave to my wife Dame Jane Davy all my other property whether funded or in government securities or in leases of houses or goods &c. and I leave her my sole residuary legatee and sole Executrix. I wish her to enjoy the use of my plate during her life and that she will leave it to my brother in case he survive her and if not to any child of his who may be capable of using it but if he be not in a situation to use or enjoy it then I wish it to be melted and given to the Royal Society to found a medal to be given annually for the most important discovery in Chemistry any where made in Europe or Anglo-America. Knowing the perfect understanding and love of justice of my wife I leave to her all other arrangements which may make my memory useful to the world and awaken the kind feelings of my friends and I wish her and my brother and all my friends every happiness this life can afford.

HUMPHRY DAVY.

C.

That is a clause explanatory of my Will.

I wish seals not rings with a fish engraved upon them to be given to some of my friends amongst whom I mention Mr Knight Dr Babington Mr Pepys Mr Hatchett. And lest there should be any doubt respecting the £3000 mentioned I mean my brother to be a trustee for this and should he die without children I mean it to belong to my sister Millett's children £2000 to Humphry Millett my godson and the rest to be equally divided between the other children but should my brother marry and have children I then mean after the death of my sisters these £3000 to be divided between her child or children and my sisters and £1000 to go to Humphry Millett my godson and £500 to my sister's other children leaving the arrangement to my brother.

D.

Further explanatory Clause, Feb. 27th 1828.

H. D.

I leave to my brother John Davy M.D. the proceeds of my Agricultural Chemistry in the future editions and the profits of my work on fishing and I give him the copyright. I leave my friend Thomas Poole Esq. of Stowey fifty pounds to purchase some token of remembrance.

H. D.

Rome Nov. 18th 1828.

By this addition to my will I confirm all that I have willed in a paper left in a brass box at Messrs Drummond leaving Lady Davy my sole Executrix and residuary legatee. I leave the copyright of Salmonia to my brother John Davy wishing him to apply a part of the profits of the sale of the editions of this work to the education of my nephew Humphrey Millett in case he has no children of his own. I leave the copy of my Vision in my writing