' Mr. Brande and Mr. Faraday will commence their Lectures and 

 Demonstrations in Theoretical and Practical Chemistry, in the Labo- 

 ratory of the Royal Institution, otz Tuesday, the 9th of October, at Nine 

 in the Morning precisely. Fuiiher particulars, and a Prospectus, maybe 

 obtained at the Royal Institution, 21, Albemarle- street, or by application 

 to the Lecturers. 



In the Press — A Collection of Chemical Tables, for the use of 

 Students, in Illustration of the Theory of Definite Proportionals, in 

 which are shewn the Equivalent Numbers of the Elementary Sub- 

 stances, with the Weights and Volumes in which they combine, together 

 with the Composition of their most important Compounds, and the Au- 

 thorities for their Analysis. By William Thomas Brande. 



