▼i CONTENTS. 



JULY, 1810. 



Engravings of the following Subjects: 1. An Escapement for a Clock, by Mr, 

 George Prior: 2. An Eye Bath, by Mr. George Duckett Ross: 3. A Dia- 

 gram to illustrate a new Theory of the rotary Motion of the Earth, by Pro- 

 fessor Wood of Virginia: 4. A Method of securing the Beams of Ships, with- 

 out Wooden Knees, by Mr. George Williams: 5. An Improvement in Linch- 

 pins, to prevent Accidents. By Mr. J. Varty. 



I. Observations on the Combustion of several Sorts of Charcoal, and on Hidro- 

 gen Gas. By Theodore de Saussure* Read at the Society of Natural Phi- 

 losophy and Natural History of Geneva, August the 31st, 1809 161 



II. Description of a Clock Escapement. By Mr. George Prior, jun. of Otley, 

 iu Yorkshire - - - - - \iq 



III. An Eye Bath to clear the Eye from extraneous Matters, and to assist the 

 Sight. By Mr. John Duckett Ross, No. 55, Princes Street, Leicester 

 Square - ■ - - - 179 



IV. On Telegraphic Communications, in a Letter from Richard Lovell Edge- 

 worth, Esq. M. R. I. A. - - - - 181 



V. New Theory of the Diurnal Motion of the Earth round its Axis. In a 

 Letter from Professor Wood - - - - 183 



VI. Method of securing the Beams of Ships, without Wooden Knees made of 

 one Piece. By Mr. George Williams, Master Carver at his Majesty's Dock 

 Yard, Chatham - - - - - 187 



VII. Method to prevent the Accidents which frequently happen from the 

 Linchpins of Carriages breaking or coming out. By Mr. J. Varty, of Liver- 

 pool, Coach maker - - - - 183 



VIII. An Analysis of several Varieties of British and Foreign"' Salt (Muriate of 

 Soda), with a View to explain their Fitness for different economical Purposes. 

 By William Henry, M.D. F.R.S. V. P. of the Lit. and Phil, Society, and 

 Physician to the Infirmary at Manchester - - 190 



IX. On the Proportions of the Elements of some Combinations, particularly of 

 the Alkaline Carbonates and Subcarbonates. By Mr. J. E. Berard *20o* 



X. On Chemical Printing, and particularly on the Progress of this Art in Ger- 

 many. By Mr. Marcel de Serres. Inspector of Art*, Sciences, and Manu- 

 factures - - - - - 205 



XL Observations on Dr. Bostock's Remarks upon Meteorology. By Luke 

 Howard, Esq. - - - - - 212 



XII. Experiments on the comparative Powers of Cylinder and Plate electrical 

 Machines, and on a Means of doubling, trebling, or quadrupling their 

 charging Power. By Mr. John Cuthbertson and Mr. G. J. Singer. Com- 

 municated by Mr. Singer - - - - 218 



XIII. Researches on Acetic Acid, and some Acetates. By Richard Chenevix, 

 Esq. F.R.S. M. R.I. A. &c. -. 225 



XIV. On the Precipitation of a Solution of Sulphate of Lime by Sulphuric 

 Acid. By T. Le Gav Brewerton, Fellow of the Royal Physical Society, 

 Edinburgh ----- 237 



Scientific News - - - - - 233 



Meteorological Journal. • 240 



AUGUST, 



