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TO THIS TWENTY-FOURTH VOLUME.

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Engravings of the following Subjects: 1. Captain Bolton's improved.Jury Mast

2. Captain H. L. Ball's Method of Fishing an Anchor: 3. Captain Ball's ims

proved Anchor: 4. Mr. J. Tad's Method of causing a Door to open over a

Carpet: 5. Mr. W. Barlow's Wrench for Screw Nuts of any size.

I. On the Union of Tan and Jelly: by-John Bostock, M. D.

1

II. The Bakerian Lecture. An Account of some new analytical Researches on

the Nature of certain Bodies, &c. By Humphry Davy, Esq. Sec. R. S. F. R. S.

Ed. and M. R. I, A.

12

III. Remarks on the Boracic Acid, addressed to the first Class of the Institute,

December 19th, 1809, by F. R. Curaudau, Professor of Chernistry applicable

to the Arts, and Member of several literary Societies,

24

IV. Abstract of a Paper on the Decomposition and Properties of Fluoric Acid,

presented the 9th of January to the Mathematical Class of the Institute, by

Messrs. Gay-Lussac and Thenard.

29

V. Description of a Process, by Means of which Potash and Soda

may

be

tallized without the Assistance of Iron; read before the French Institute the

18th of April, 1808 ; by F. R. Curaudau.

37

VI. Observations and Experiments on the Nature of the New Properties of the

Alkaline Metals ; by the same

40

VII. Improved Method of Forming Jury Masts: by Captain William Bolton of

the Royal Navy

44

VIII. An Improvement of the Construction of Anchors, to render them more

durable and safe for Ships:

with an improved Mode of Fishing Anchors. By

Captain H. L. Ball, of the Royal Navy.

46

YX. Observations on the Progress of Bodies floating in a Stream: with an Ac-

count of some Experiments made in the River Thames, with a View to dis-

cover a Method for ascertaining the Direction of Currents. By James Burney,

Esq.

49

X. New Method proposed for measuring a Ship’s Rate of Sailing. By the same

Gentleman.

57

XI. Method of preventing Doors from dragging on Carpets, or admitting Air

underneath them. By Mr. John Tad

59

XII. Description of an improved Screw Wrench, to fit different sized Nuts, or

Heads of Screws, By Mr. William Barlow.

61

XIII. On the Measurement of Heights by the Barometer. In a Letter from a

Correspondent.

63

XIV. On the Glauberite. By Alexander Brongniart

65

XV. An excellent colourless Copal Varnish. By Mr. Lenormand, late Professor

of Natural Philosophy.

67

Scientific News

68

Meteorological Table

80

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OCTOBER, 1809.
Engravings of the following Subjects: 1. The Sting of the Nettle, highly magni-

fied, in its natural State, emitting its Poison, and when broken: 2. The Awn
of the Indian Grass, used in Captain Kater's Hygrometer: 3. The Leaf and
Stem of the Sensitive Plant, showing their Structure: 4. The Spiral Wire and

its Case greatly magnified.

1. Farther Application of a Series to the Correction of the Height of the Ba-

rometer

81

II. On the Action of the Metal of Potash on Metallic Salts and Oxides, and on

Alkaline and Earthy Salts. By Messrs. Thenard and Gay-Lussac. 92

III. The Bakerian Lecture. An Account of some new analytical Researches on

the Nature of certain Bodies, &c. By Humphry Davy, Esq. Sec. R. S.

F. R. S. Ed. and M. R. I. A.

95

IV. Extract of a Letter from Mr. J. B. van Mons, Member of the Institutes of

France and Holland, to the Editor, on Atmospheric Phenomena 106

V. Remaining Proof of the Cause of Motion in Plants explained; and what is

called the Sleep of Plants shown to be Relaxation only. By Mrs. Agnes

Ibbetson.

114

VI. A curious Property of Single Repetends. In a Letter from W. Saint, Esq.

124

VII. On the Use of Iron for Stairs, and instead of the Timbers of Houses, as a

Security against Fire. In a Letter from Mr. Benjamin Cook.

126

VIII. On Respiration. By Mr. J. Acton. In a Letter from the Author 130

IX. On the Camera Lucida. In a Letter from Mr. R. B. Bate

146

X. Account of some Experiments performed with a view to ascertain the most

advantageous Method of constructing a Voltaic Apparatus, for tbe Purposes

of Chemical Research. By John George Children, Esq. F. R. S. 150

XI. Report of a Memoir of Mr. Hassenfratz respecting the Alterations that the

Light of the Sun undergoes in traversing the Atmosphere. By Mr. Hauy.

155

NOVEMBER, 1809.

Engravings of the following Subjects: 1. Luminous Meteors, seen during a

Thunder Storm, by James Staveley, Esq: 2. Diagrams to illustrate the Theory
of Aerial Navigation, by Sir George Cayley, Bart. : 3. A Machine that
ascend into the Air of itself by Mechanical Means: 4. A Machine with which

a Man may raise himself into the Air.

1. Account of some luminous Meteors seen during a Thunderstorm. In a Letter

from James Staveley, Esq.

161

II. On Aerial Navigation. By Sir George Cayley, Bart.

164

III. On Electro-Chemical Experiments. By Mr. G. J. Singer

174

IV. Extract of a Letter from Mr. J. B. Van Mons to Mr. Sue, on different

Subjects relating to Galvanism and Electricity.

179

V. Description of the Process employed to ascertain the Existence of Alumine

in Meteoric Stones, by B. G. Sage, Member of the French Institute, Founder

and Director of the First School of Mines

190

VI. Letter from Mr. Rampasse, formerly Officer in the Corsican Light Infantry,

to Mr. Cuvier, on a Calcareous Breccia containing fossile Bones found in

Corsica.

193

VII. Extract of a Letter from Professor Picot, of Geneva, to the Editors of the

Bibliotheque Britannique, on Comets,

197

VIJI. On the Influence the Shape of a Still has on the Quality of the Product of

Distillation : by Mr. Curaudau, Member of the Pharmaceutical and several

Other Societies.

201

IX. On Vegetable Astringents. By John Bostock, M. D. Communicated by

the Author.

204

X. Question on the Preparation of Cork for modelling. In a Letter from a

Correspondent.

222

XI. On the Dusodile, a New Species of Mineral; by Mr. L. Cordier

223

XII. Memoir on the Triple Sulphuret of Lead, Copper, and Antimony, or

Endellion. By M. le Comte de Bournon, F. R. and L. S.

225

XIII. On Detonating Silver, By Mr. Descotils.

237

XIV. Process for making a Fine Lake.

238

XV. On the Blue Wolfsbane, by Philip Antony Steinacher.

238

Scientific News.

230

Meteorological Table.

240

:

DECEMBER

Engravings of the following. Subjects,, (In Two Quarto Plates :) 1. Figures

illustrating the Crystallization of Endellion, by the Count de Bournon. 2.

Diagrams for a Demonstration of the Cotesian Theorem; by Mr. P. Barlow.

1. On Vegetable Astringents. By John Bostock, M.D. Communicated by the

Author

241

11. Memoir on the triple Sulphuret of Lead, Copper, and Antimony, or En-

dellion. By M. le Comte de Bournon, F. R. & L. S.

251

III. Of the Irritability of Vegetables. By Mr. Robert Lyall, Surgeon. Read

at the Literary and Philosophical Society at Manchester, Oct. the 6th, 1809.

Communicated by the Author.

261

IV. Demonstration of the Cotesian Theorem, by Mr. P. Barlow

278

V. On the Influence of Electricity on Flame: by Mr. Leopold Vacca, Colonel

of the 23d Regiment of Light Infantry.

283

VI. Of the Action of Phosphorus and oxigenized muriatic acid Gas-on Akatis:

by Messrs. Bouillon-Lagrange and Vogel.

285

VII. On the Chemical Analysis of the Onion. By Messrs Fourcroy and Vay-

quelin.

290

VIII. Abridgment of a Paper on the Species of Carnivorous Animals, the Bones

of which are found mixed with those of Bears in Caverns in Germany and

Hungary. By Mr. Cuvier.

295

IX. Account of some Colours for Painting, found at Pompeii ; by Mr. Chaptal.

Communicated to the First Class of the Institute, March the 6th, 1809.

302

X. Remarks on the Introduction of Air into the Blood through the Lungs, in

Answer to Mr. Acton. In a Letter from a Correspondent.

.307

XI. Letter from Mr. Robert Bancks concerning the Meteorological Journal

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