CONTENTS 



OP THR 



FORTY-FIRST VOLUME. 



An Attempt to determine the definite and simple Propor- 

 tions, in which the constituent Parts of unorganic Sub- 

 stances are united with each other 3, 81, 197, 275, 334, 



401 



berivation of one of the Equations in Laplace*s «M6cha- 



8 

 nique Celeste" 



t)escription of a Mercurial Voltaic Conductor .. .. 1* 

 On the Difference between the Hydro-carbonated Gases ex- 

 tricated from Mineral and Animal Substances respectively 



16 



Comparative Analysis of the Vrine of various Animals 1 7 



Observations on the Measurement of three Degrees of the 



Mtridian, conducted in England by Lieutenant-Col. 



WILLIAM MUDGE 20,90 



On the Differential Thermometer ^^ 



Dissertation on the Paintings of the middle Age, and those 



called Gothic 35,171,348 



On the Teeth of Fishes, and Shells found in the Vicinity of 



Reading •• •• - "** 



On the Formation of Sulphur in India *01 



Of such Portions of a Sphere as have their Atttactiofi ex- 

 pressed by an algebraic Quantity .. . . • • • • ^04 



Of Coffee, and the Art of preparing it 10* 



Some Remarks on the Use of Nitrat of Silver, far the Ds- 



ieclion of minute Portions of Arsenio '21 



Vol.41.No. 182. J«ra« 1813. * 



