CONTENTS. 



Description of a Barometer for measuring Altitudes, con- 

 structed on the Principle of the Elasticitu of included Air. 

 Bt/ J OHUMVRR AY, F.L.S.3IJV.S. ^c. ... 61 



Geological Section of Hunstanton Cliff, Norfolk. By Mr. 

 Richard Taylor, of Norwich 81 



Meynoir on the different Species, Races, and Varieties of the 

 Genus Brassica (Cabbage J, and of the Genera allied to 

 it, which are cultivated in Europe. By M. De Candolle 



87, 181 



On di^erent Modes of working Coals, and of ventilating the 

 TVorks. By Mr. John Farey, Mineral Surveyor 99 



Oil the Nomenclature of the Cornish liocks. By John Haw- 

 Kiss, JEsq. F.R.S, Sfc. Honorary Member of the Royal 

 Geological Society of Cornwall 102 



On the Knowledge and Commerce of Tin among Ancient 

 Nations. By the Rev. SamveIj Greathiebd . . 109 



Remarks on Iridina, a Genus of Fresh-water Bivalve Shells ; 

 zsith the Specific Chai'acters of three Species. By Wm. 

 SwAiNso^, Esq. F.R.S. F.L.S. Sfc 112 



Report made to the Academy of Sciences, Paris, on a Paper 

 of M. Flourens entitled " Determination of the Properties 

 of the Nervous System, or Physical Researches concerning 

 Irritability and Sensibility.'''' By M.G.Cvw^k. . 114 



On Maps of the Moon 125 



On the North Polar Distances of the Principal Fixed Stars 



126 



On a proposed Society for Scientific Information . . 133 



On the Orbit of the Planet Vesta. By A Correspondent, 



161 



On a Property of Polygons. By Mr. Drummond . 162 



On the Causes of the Variation of the Magnetic Pole. By 

 jl/?-. Richard Webster 165 



Some Account of M. BichaVs Theory of Life . . . 168 



On Chronometers. By Mr. G.W.Uvtto^ .... 177 



On the Structure of the Earth, and the Changes xohich are 

 continually passing upon it by the constant Operation of 

 the Lazes of Nature. Read before the Glasgow Philoso- 

 phical Society on the 29th of July 1822. By James 

 BoAZ, Esq 200 



On the Aleasurement of Timber. By Mr. Wiseman. 204 

 On the same Subject. By Mr. Newton .... 206 



Some Experiments connected with the Relations of Caloric to 



Magnetism. By Jonti Murray, Esq. F.L.S. M W.S., 8fc. 



207 



Remarks on Fermentation. By John Mur r a y, Esq. F.L.S. 

 M.W.S.,S,c 208 



