OCTOBER, 1811. Engravings of the, following Subjects: 1. Mr. Donkin's Tachometer, for as- I. On the Destruction of an Enemy's Fleet at Sea by Artillery: by W. Moore,' 81 II. Correction of an Errour in a former Paper on the Motion of Rockets. By III. On a Property of reflected Light: by Mr. Malus 93 95 IV. Experiments on the Transmission of Sound through Solid Bodies, and through Air in very long Tubes: by Mr. Biot 103 V. Observations and Experiments on Pus. By George Pearson, M D. F. R. S 113 121 VI. Description of a Tachometer, or an Instrument to ascertain the Velocities 126 VIII. Description of a Machine for separating Iron Filings from their Mixture with other Metals: by Mr. J. D. Ross, Prince's Street, Soho IX. A new Method of constructing Sash Windows, so as to be cleaned or re paired without the Necessity of any Person going on the outside of the House: by G. Marshall, No. 15, Cecil Court, St. Martin's Lane 127 129 X. Observations on the peculiar Appearance of those Meteors commonly called 131 133 XI. On the Composition of Zeolite, by James Smithson, Esq. F. R. S. 137 140 XIV. Meteorological Journal 142 XV. Remarks on the Inclination of the Stems of Plants towards the Light: by 144 XVI. On the Forcing-houses of the Romans, with a List of Fruits cultivated by them, now in our Gardens. By the Right Hon. Sir Joseph Banks, Bart. K. B. P. R. S. &c. 147 154 XVII. Method of preparing Ox Gall in a concentrated State for Painters, and for other Uses: by Richard Cathery, No. 14, Mead's Row, Lambeth XVIII. Letter from Mr. Vitalis, Professor of Chemistry at Rouen, to Mr. Bouillon-Lagrange, on the Amalgam of Mercury and Silver, called Arbor Dianæ 156 157 NOVEMBER, NOVEMBER, 1811. Engravings of the following Subjects: 1. Peduncles of Leaves delineated and dissected, to show their Mechanism. By Mrs. Agnes Ibbetson. 2. Apparatus to explain the Decomposition of Water in separate Vessels by Galvanism. By Adam Anderson, Esq. 3. Crystals of carbonated Lime. By Abbé Haüy. I. On a Property of the repulsive Forces, that act on Light: by Mr. Malus. 161 II. Experiments on the Production of Sound in Vapour: By Mr. Biot. 169 III. Experiments to prove, that Fluids pass directly from the Stomach to the Circulation of the Blood, and thence into the Cells of the Spleen, the Gall Bladder, and Urinary Bladder, without going through the Thoracic Duct. By Everard Home, Esq. F. R. S. 173 IV. Of the mechanical Powers in the Leaf Stalks of various Plants. In a Letter from Mrs. Agnes Ibbetson -179 V. On the Decomposition of Water in two or more separate Vessels. In a Letter from Adam Anderson, Esq. 183 .: VI. Description of several new Varieties of carbonated Lime: by Mr. Haüy. 189 VII. Extract of a Letter from Dr. Francis Delaroche to F. Berger, Esq.; on Radiant Heat and other Subjects. Communicated by the latter Gentleman. 192 193 VIII. On Chemical Attraction. By Marshall Hall, Esq. IX. On the Horticultural Management of the Sweet or Spanish Chestnut Tree. By the Right Hon. Sir Joseph Banks, Bart. K. B. &c. 202 X. On Potatoes. By Thomas Andrew Knight, Esq. F. R. S. &c. 204 XI. A remarkable analytical Anomaly respectfully submitted to the Considera. tion of Mathematicians. By a Correspondent. 209 XII. On the Migration of Swallows: by Dr. Traill. Read before a Literary and Philosophical Society established at Derby, Sept. 17th, 1808, of which Dr. Traill is a corresponding Member 213 XIII. Account of the Appearance of a Luminous Meteor: by Professor Pictet. 216 XIV. Letter from Professor P. Prevost, to Professor Pictet, on the Meteor of the 15th of May. 218 XV. Improvement in the Aquatinta Process, by which Pen, Pencil, and Chalk, Drawings can be imitated: by Mr. J. Hassell, No. 11, Clement's-Inn. 220 XVI. On the Nature of Oximuriatic Acid Gas, and the Conversion of Carbonic Oxide into Carbonic Acid by it, in Reply to Mr. J. Davy. In a Letter from Mr. J. Murray, Lecturer on Chemistry, Edinburgh. XVII. Meteorological Journal 236 226 XVIII. Experiments on the Acid Phosphate of Potash: by Mr. Vauquelin. 238 Scientific News. DECEMBER, DECEMBER, 1811. Engravings of the following Subjects: 1. Plans and Sections of a Spire of a new Construction, lately erected at Edgeworthstown, by R. L. Edgeworth, Esq. F. R. S. M. R. I. A., &c. 2. Diagrams for the Demonstration of the Fundamental Property of the Lever, by D. R. Brewster, LL. D. F. R. S. Esq, I. Description of a Spire of a new Construction, at Edgeworthstown, combining the Advantages of Cheapness, Elegance, and Durability. In a Letter from Richard Lovell Edgeworth, Esq. F. R. S. M. R. I. A. &c. II. Experiments on some Preparations of Gold: by Mr. Vauquelin 241 248 III. Experiments on Human Bones, as a Supplement to the Paper on the Bones of the Ox; by Messrs. Fourcroy and Vauquelin. 257 IV. Letter from Mr. Berzelius to Mr. Berthollet on the Analysis of different Salts. 260 V. Account of a Substitute for Leghorn Plait, for Hats, &c. By Mr. William Corston, of Ludgate Hill. 273 276 VI. Correspondence of Dr. William Roxburgh, of Calcutta, with Dr. C. Tay- 280 VIII. On the Nature of those Meteors, commonly called Shooting Stars. In a Letter from John Farey, Sen. Esq. 285 IX. On the Causes of the Decay of the Timber in Ships, and the Means of preventing it. In a Letter from a Correspondent. 287 X. On the Art of Coating Metals with Platina: by Mr. Guyton-Morveau 292 XI. Experiments and Observations on the different Modes in which Death is produced by certain vegetable Poisons, by B. C. Brodie, Esq. F. R.S. Communicated by the Society for promoting the Knowledge of Animal Chemistry. XII. Analysis of a Chinese Gong-gong: by Mr. Klaproth. XIII. Meteorological Journal. 295 307 308 XIV. Chemical Examination of the yellow Resin of the Xanthorrhoea Hastilis, and of the resinous Cement employed by the Savages of New Holland to fix the Stone of their Hatchets: by Mr. A. Laugier. XV. Note on the Precipitation of Silver: by Mr. Gay-Lussac. 310 318 XVI. Table expressing the Quantities of Sulphuric Acid at 66° [spec. grav. 1842] contained in Mixtures of this Acid and Water, at different Degrees of the Areometer: by Mr. Vauquelin. 3.9 SUPPLEMENT TO VOL. XXX. Engravings of the following Subjects, 1. Mr. Lester's Machine for washing Roots. 2. Mr. Salisbury's Method of packing and preserving Plants and Trees. 3. The Sheffield Apparatus for cleaning Chimneys without the Aid of Climbing-Boys. I. On the Place of a Sound, produced by a Musical String. In a Letter from Mr. John Gough. 321 II. Experiments and Observations on the different Modes in which Death is produced by certain vegetable Poisons: by B. C. Brodie, Esq. F. R. S. Com municated by the Society for promoting the Knowledge of Animal Chemistry. 324 III. Description of a Mashine fer washing Potatoes, and other esculent Roots for feeding Cattle: by Mr. William Lester, of Paddington. 336 IV, Method of packing Plants and Trees intended for Exportation, so as to preserve their vegetative Powers for many Months: by William Salisbury, of the Botanic Gardens at Brompton and Sloane-Street. 339 V. Description of an Apparatus used at Sheffield for cleaning Chimneys: by Mr. Samuel Roberts, Chairman of a Committee appointed at that Place for encouraging the Sweeping of Chimneys without the Use of Climbing, boys. * 349 VI. Abstract of a Paper on the bitter Substances formed by the Action of Nitric Acid on Indigo: by Mr. Chevreul. • 351 VII. Analysis of Hedge Hyssop, Gratiola Officinalis, of the Order Bignonia of Jussieu: by Mr. Vauquelin. 365 VIII. On the Causes which influence the Direction of the Growth of Roots. By T. A. Knight, Esq. F. R. S. In a Letter to the Right Hon. Sir Joseph Banks, Bart. K. B. P. R. S. 370 IX. On the mucilaginous State of Distilled Waters: by Mr. Bucholz. 379 X. A new Analysis of Ambergris: by Mr. Bucholz. 381 XI. Process for preparing Phosphoric Acid: by Mr. Martres, Apothecary at Montauban, and Member of several Societies. 383 Index 385 A JOURNAL NATURAL PHILOSOPHY, CHEMISTRY, AND THE ARTS. SEPTEMBER, 1811. ARTICLE I. On the Hairs of Plants. In a Letter from Mrs. Agnes WE study the larger and conspicuous parts of botany, Powerful pur but we leave with a sort of contemptuous neglect all the poses answered by little means more diminutive features, as unworthy our notice, little extremely aware how much nature performs in this way, and how many multiplied. great and powerful purposes are answered by apparently lit tle means, extremely multiplied. If we minutely examine all the works of nature, this will appear a very important truth; nor does any art or science show this more conspicu ously than the study of physiology, where all are multiplied little means, conducing to one great and important end. The subject of the present letter will peculiarly exemplify this. It is on the Hairs of Plants. I have endeavoured to show, and I hope succeeded in No perspira proving," that the idea of perspiration in plants is an abso- tion in plants. lute fable," originating from the poorness of our magnifiers: VOL. XXX. No. 136-SEPT. 1811. B and |
