CONTENTS* 



XXX . Tables exhibiting a collective View of all the Frigo- 

 rife Mixtures contained in Mr. Walker's Publication, 

 1808 ... . .. 177 



XXXI. Notices respecting New Books ..- .. .. 181 



XXXII. Proceedings of Learned Societies 184 



XXXI II. Intelligence and Miscellaneous Articles .. 191 



XXXIV. Electrochemical Researches on the Decomposition 

 of the Earths ; with Observations on the Metals obtained 



from the alkaline Earths, and on the Amalgam procured 

 from Ammonia. By Humphry Davy, Esq., Sec. R.S. 

 M.R.I.A. Prof Chem. R.I. .193 



XXXV. An Inquiry into the Structure of Seeds, and espe' 

 cially into the true Nature of that Part, called by Gcertner 

 the Vitellus. By James Edward Smith, M.D. F.R S. 

 P.L.S. 223 



XXXVI. A Letter on the Differences in the Structure of 

 Calculi, which arise from their being formed in different 

 Parts of the urinary Passages; and on the Effects that 

 are produced upon them by the internal Use of solvent 

 Medicines, from Mr. William Brande to Everard 

 Home, Esq., F.R.S . . 234 



XXXVII. Some Observations on Mr. Brande's Paper on 

 Calculi- By Everard Home, Esq., F.R.S. . . 239 



XXXVIII. On the Changes produced in Atmospheric Air and 

 Oxygen Gas by Respiration. By W. Allen, Esq., 

 F.R.S., and W. H. Pepys, Esq., F.R.S. .. 242 



XXXIX. On Commerce. By Mr. James Graham, of 

 Berwick-upon-Tweed . 267 



XL. On the Means employed in Spain for the Cure of 

 Hydrophobia . . . . 273 



XLI. A Description of the Apparatus by which the French 

 Experiment on the Decomposition of Potash has been made 

 at the Royal Institution 276 



XLI I. Description of an Apparatus for the Analysis of 

 the Compound Inflammable Gases by Slow Combustion ; 

 tvith Experiments' on the Gas from Coal, explaining its 

 Application. By William Henry, M. D. Vice-Pres. 

 of the Lit. and Phil. Society, and Physician to the In- 

 firmary, at Manchester. Communicated by H. Davy, 

 Esq. Sec. R.S. .. ' 277 



XLIII. Lieutenant Bell's Invention for preserving the Lives 

 of Mariners in Cases of Shibwreck . . .. .. 294 



XLIV. On the Origin and Office of the Alburnum of Trees. 

 In a Letter from T. A. Knight, Esq., F.R.S., to Sir' 

 Joseph Banks, Bart.K.B. P. R.S. 299 



XLV. On 



