
Cc STITUTION ¢ OF MATTER 9 
another to form more and more complex molecules— 
such as are to be met with in bases and acids, in salts 
and double salts, in alkaloids and organic compounds 
—some of the latter of which may be composed of 
hundreds of the marvellous atoms whose constitution 
we have been briefly considering. 
Can anything be said as to the mode of origin of 
these chemical elements, or as to some of the 
conditions that seem to favour their origin? Some 
hints on this subject must be reserved for the next 
chapter. 
