164 
GEOLOGY OF THE SECOND DISTRICT. 
In conclusion, I would remark, that in drawing up my account of these rocks, I have felt 
that much less interest will ever be attached to them, in consequence of their entire destitution 
of fossils. They are to be considered, however, as furnishing us with a knowledge of that 
state which immediately preceded the existence of organic beings ; they furnish one link in 
the history of the earth, which is necessary for us to possess before we can by any means 
consider our knowledge as being at all complete, or as full as is necessary if we would reason 
correctly. 
