1818.] Scientific Intelligence. 73 



On the Properties of the different Species of Rays which may 

 be separated by Means of the Prism from the Solar Spectrins. 

 By M. J. E. Berard. (For an account of this paper see Annals- 

 of Philosophy, vol. ii. p. 161.) 



Memoir upon a new detonating Substance. By M. Dulong. 

 (For an account of this substance, see Thomson's Chemistry, 

 vol. i. p. 215, fifth edit.) 



Considerations on Vegetable Analysis and Animal Analysis. 

 By M. Berthollet. 



Observations on the Mercurial Precipitates, and on those of 

 Sulphate of Alumine. By M. Berthollet. 



Experiments to determine if Alcohol exists ready formed in 

 Wine. By M. Gay-Lussac. 



On a Method of imitating artificially the Phenomena of 

 Colours produced by the Action of thin Plates of Mica upon 

 polarized Rays. By M. Biot. (For an account of M. Biot's 

 experiments on the manner in which light is affected by passing 

 through thin plates of various substances, see Annals of Philo- 

 sophy, vol. i. p. 225 ; vii. 4 ; viii. 294. 



Description and Use of a repeating Goniometer. By M. 

 Malus. 



On a remarkable Law which is observed in the Oscillations of 

 luminous Particles, when they cross obliquely thin Plates of 

 Sulphate of Lime or Rock Crystal, cut parallel to the Axis of 

 Crystallization. By M. Biot. 



Continuation of the Observations on the inflammable Gases, 

 6tyled Carburetted Hydrogen and Oxicarburetted Hydrogen. By 

 M. Berthollet. (The paper of which this is stated to be the 

 continuation is contained in the second volume of these memoirs.) 

 Experiments on the Proportion of the Elements of Nitric 

 Acid. By M. Berthollet. 



Observations on the Composition of Oxymuriatic Acid. By 

 M. Berthollet. 



On the Influence of the Pressure of the Air upon the Crys- 

 tallization of Salts. By M. Gay-Lussac. 



Researches upon the Laws of the Dilatation of Fluids at all 

 Temperatures. By M. Biot. (A translation of this paper was 

 inserted in the Annals of Philosophy, vol. ix. p. 363.) 



Memoir on the Geography of the Plants of Fiance, considered 

 in its Relations with absolute Height. 



Memoir on the Colour of thin Plates. By M. Arrago. (Some 

 account of M. Arrago's experiments on light will be found along 

 with those of M. Biot, ;is referred to above.) 



Comparative Examination of tin: Intensity of Action which 

 the extraordinary repulsive Fbree oflceland Spar exercises upon 

 tli.- luminous Molecules of different Colours. By M. Biot. 



General Considerations on double Flowers, and in particular 

 on those of the Family of the Ranunculacea. By M. Delan- 

 dolle. 



