Professor Bsande will commence the Chemical Lectures in 



the Laboratory of the Royal Institution, on Tuesday the 

 1th of October, at nine in the morning precisely. A 

 Prospectus of these Lectures xoill be found at page 191 

 of this Number. 



TO OUR READERS AND CORRESPONDENTS. 



Reviews of Dr. Henry's Elements of Chemistry, and of the last part 

 of the Philosophical Transactions, are postponed to the ensuing- Number, 

 in consequence of our arrears in the department of Foreign Science. 



1 description of Mr. Rider's Patent Steam Engine, together with 

 i'Hus :ive Plates, will be inserted in our next Number. 



Lamarck's Genera of Shells will be concluded in the present Volume. 



The remarks of O. P. on the proposed Charter of the Asiatic Society 

 have reached us, and will be duly attended to. 



Mr. James Adams' Communication reached us too late for insertion ; 

 with his permission we reserve it for our next. 



We are obliged by Mr. Prinsep's remarks on Adie's Sympiesometer, 

 which we also reserve from want of room for the plate. 



We would willingly oblige our correspondent W. W. by the insertion of 

 his communication ; but as it is merely an extract from the Rev. G. S. 

 Faber's " Genius and Object of the Patriarchal, the Levitical, and the 

 Christian Dispensation," we must beg leave to refer our readers to the 

 Chapter " on the Mosaic Cosmogony" in that work, to assist them in ap- 

 preciating the opinions of M. De Luc, as opposed to those of Mr. Gran- 

 ville Penn, upon the subject of the word day, as employed in the Mosaic 

 history of the Creation. 



The description of the New Laboratories and Apparatus erected at 

 Apothecaries' Hall, will probably appear in another form ; but our Corre- 

 spondent may be assured we shall attend to his wishes. 



" Hints to the Architect of the British Museum" appear to us to be 

 premature. Has P. seen the plan ? 



Mr. Harvey's paper on the Population of Great Britain, with it accom- 

 panying plate, will appear in our next. 



