( 388 ) 
is now shewn to be Inherent In both kinds of ray*, and 
universally operative in all the cases of reflection and 
refraction. Chemistry has a second time, within our 
own observation, become a new science by the discovery 
bf the effects of galvanism on its processes, and the 
developement of elementai-y substances of higher sim- 
plicity than were before known, — of the definite propor- 
tions of component parts,— the laws of elective attractions 
and of crystalline forms, and even to a certain extent 'of 
the remoter causes of those laws and forms. The cul- 
tivators of the sciences, the directors of the operations 
of the arts, public institutions and societies, have become 
every year more numerous and rapid in their increase ; 
at the same time that roads, bridges, canals, and other 
national works, as well as private undertakings, have been 
every where established. 
Under such circumstances of national vigour, I have ~ 
felt it to be a proud situation to act as the Journalist of 
our own improvements, along with those which have 
been made on the Continent, • My labour has been re- 
munerated, partly by income, and amply by the marks of 
public and private respect which have attended them. 
I have now to announce a change in the manner of 
my scientific intercourse with the public. I trust it will 
be found that that change will be beneficial. Upon many 
occasions, my Correspondents have complained, that the 
same academical papers and articles of information have 
