TO OUR READERS AND CORRESPONDENTS. 



Thb pages of this Journal are impartially open to all communications 

 upon the subjects of Science, Scientific Literature, and the Arts : it is 

 requested they may be forwarded to the Editor one month previous to 

 the publication of each number. 



We shall be happy to receive papers from Provincial Scientific 

 Societies, and to publish them either on the part of the Society, or of 

 their respective authors. 



Papers deemed unfit for this publication, will be immediately returned 

 to the source whence we received them, with oiur reasons for their 

 return. 



The letters signed B. and T. R. S. we have thought it prudent to 

 suppress for the present. 



Several books have reached us for notice in this Journal ; but unless 

 they are sent earlier in the Quarter, we cannot insure attention to 

 them. 



We have been favoured with communications from Mr. Swainson, 

 Dr. Littledale, Mr. Rose, and E. Z., which we are obliged to postpone. 



A letter from a " Member of the Zoological Society,*' reached us too 

 late for the purpose it was intended to answer. We fear we shall not 

 agree with him in opinion, but perhaps his second communication may 

 clear up the difierence. 



We presume that " A Mechanic" will find the information he re- 

 quires in Mr. Farcy's account of the Steam Engine. 



" An old Subscriber" is much in error— the proceedings he alludes to 

 are copiously given in contemporary monthly publications ; if therefore 

 we followed his advice, our information would be stale. The motives 

 he alludes to are out of the question. 



We cannot give " A Vapourer" any authentic information respecting 

 the Steam Carriage, nor do we hear that the Gas Engine has advanced. 



