IV. ADVERTISEMENT. 



has been as it ought to be in every review, to present to the 

 reader an outline of the work under consideration, more 

 especially, of its plan and of any new facts which it may 

 contain. This method has been extended to the Royal and 

 Linnean Societies, which appears preferable to inserting 

 papers at full length from the transactions of those Societies. 



4. Under Scientific Intelligence are included such notices 

 and answers to questions, as are too brief to form distinct 

 papers. The reports of the Royal Institution lectures, which 

 are generally of great interest, although presented under 

 many disadvantages, will, it is hoped, be found upon? the 

 whole, to afford a pretty correct view of the facts and 

 arguments brought forward. The meteorological table 

 which falls under this head, is considered to be one of the 

 most complete and correct ever published in this country. 



The intention of the Editor, although he is sensible of 

 many imperfections in it, has been to present his readers 

 with a book of facts. Whether he has succeeded or not, 

 he leaves others to determine. He cannot allow this 

 opportunity to pass, however, without noticing the cheer- 

 ing encouragement which he has received from men of the 

 highest distinction in Science ; and of thanking all those 

 who have hitherto supported him in his undertaking. He 

 trusts to their future assistance, being fully confident, that 

 the work will improve as it advances. 



